Chery Tiggo - gambling lottery. Chery Tiggo - gambling lottery Listening to the knocks in the crankshaft pairing

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Chinese crossover Chery Tiggo. was originally copied with. For the first time in Russia, these Chinese crossovers appeared in 2005. Some cars brought in disassembled form and collected already on Avtotor in Kaliningrad.

Now these cars are already selling in the secondary market, and we will understand more in more detail in the feasibility of buying this Chinese car with mileage.

Resistance to corrosion from Tiggo is not at a high level, these machines rust over time about the same way as our frets. Metal is not galvanized and where chips appear, metal begins to bloomAnd this means that after about 6 years, the rust can grow in full program. Therefore, for this car, it is vital to additionally apply anti-corrosion coating.

Bumpers are made of cheap plastic, which is not particularly strong and can crack, if you slightly hook something. On the car wash, it is also more cautious, because the washing machine under high pressure can beat off the paint with mirrors and bumpers.

Salon

In the cabin, used in full swing simple hard plastic, He very quickly begins to creak, besides this, additional noise creates door locks that are quickly cleaned. Also creaked the seat, the fabric is quite thin, so it is easy to break, loses the shape, quickly rubs and gets dirty. So the time plays not to benefit the Tiggo salon, even polyurethane foam inside the seats is crushed. But it's good that the nonsense has already managed to destroy an unpleasant phenolic smell.

The steering wheel, too, does not look very nice since the times, because plastic sees and erases. The gearbox lever, especially mechanical, is also quickly bald and looks thread.

Electronics in this car is simple, therefore there are no special problems with her, except, the tape recorder can be finched And windows in time fail. Replacing the tape recorder will cost $ 200, and the restoration of windows is $ 80. Also over time, the stove fan start loudly noise - the new fan motor costs 100 dollars. Also quickly clogged by the deposits of the heater radiator, it should be periodically rinsed, but over time it will still have to change to a new one, which costs $ 75, but in order for this radiator less, this radiator is clogged - it is necessary to pour better antifreeze.

Motors

They are installed on Cherie Tiggo Mitsubishi 4G6 motors, which have been more than 30 years old. There are engines with a volume of 2 and 2.4 liters, they have the same diseases: weak bearings on the generator - already after 70,000 km. Gul appears, meaning that these bearings are time to change.

If you pour low-quality oil, and with the intake, the valve hydrothels will quickly fail, the resource of which does not exceed 100,000 km. Male if changing the oil on time and pour quality. The hydrotherapists cost inexpensively - $ 8 per piece, the main thing is to not allow them to join, because then they pull the valves, which means that you have to put a new head of the cylinder block, which costs $ 700.

But it also happens more expensive development of events due to features in the design of these motors. But it concerns the inattentive owners more. In these engines on balancing shafts, bearing sleeves, working without excess lubrication, therefore it is necessary to ensure that the oil level in the crank is normal, otherwise the bearings without the required amount of oil are rapidly wear out, after which the shafts are jammed. And then there will be expensive repair. By the way, in these motors, you must not forget to change the timing belt every 45,000 km., It can also be changed and the belt of the balancing shaft drive belt so that the engine will not have to do.

As in any car, it is necessary to monitor the level of antifreeze in the cooling system, especially these motors may lose antifreeze at the site of the pump or antifreeze can flow through the lower nozzle of the radiator. Spark plugs should also be high-quality and workers.

Even in Chery Tiggo, it is necessary to pour high-quality gasoline so that the fuel pump serves a little longer. Moreover, in this fuel pump slim mesh filterwhich can quickly score if gasoline is low quality.

In general, the fuel pump costs only $ 80, and if the mesh has been hammered, then it is necessary to change the entire pump, but some owners simply remove the mesh, but there is a risk that dirt from fuel can get into the nozzles that cost $ 70 and they do not like dirt. When they fail - there will appear racing during idling and small vibration.

There are all-wheel drive versions of Tiggo, they have a gas tank of 2 halves, in the gas tank, a pumping system is installed, in which there is also a quickly clogging filter. If such a mesh is broken, then fuel will not roll, and the stroke reserve will decrease half. Here you can also remove this mesh forever so that it is not changed regularly.

After 2006, TIGGO models began to equip their own production engines, which were designed by the Austrian company AVL. These are ACTECO series engines with different volumes: at 1.6, 1.8 and 2.0 liters. These motors are equipped with an electron control of the choke. It turned out quite successful power units, for sure that no worse than the motors from Mitsubishi. Also require high-quality oil and antifreeze. There are cases that after 70 thousand km. Outlook the engine support, their replacement will cost $ 25.

Cherie Tiggo Transmission

The front-wheel drive modifications are equipped with an automatic transmission. This automatic 4-speed, was borrowed from the French, the model is called DPO or AL4. These boxes were installed on Renault, Peugeot and Citroen approximately after 1995. She is not famous for reliability. On CHERY TIGGO cars, which are equipped with the ACTECO motor, this box is installed, only in the name of it - QR425. She has its own characteristics: does not like to work until it warms up, the oil slightly flows through the glands, and after 80,000 km. When switching gears, shock appear, this means that it will soon be necessary to change the pressure modulation hydroclap, the price of which is 100 dollars. There are also cases that it will be necessary to replace the entire hydraulic unit, its price is rather big - $ 500.

There is a manual box for a given car - this is a 5-teased QR523 Chinese production, it has a sufficiently thought-out design of multiconus synchronizers. Very soon they create sounds similar to crunch, and after 80,000 km. Translations will be bad to switch.

The clutch usually serves less than 100,000 km. Mileage, even the lever itself can stop listening to the driver due to the fact that the sheath of cable drives melts on the exhaust manifold in the summer, and in the winter - on the contrary, when the water falls inside the shell, the cables will start trying to try to try the graduation collector. Therefore, you will have to replace the shell of cable drives, it is inexpensive - about $ 15.

In addition, there is a design flaw in the All-wheel drive version - the machine begins to tremble at a speed of 70 and 110 km / h. Despite the efforts of the dealers to balance the cardan shafts, here the reason was in the BorgWarner ITM 3E multi-disc coupling, which connects the rear wheels. So, the whole cause of vibration is that this coupling is rigidly attached to the bottom and with certain revolutions of the cardan shaft, it enters the resonance with the body. By the way, the same coupling is installed on well-known crossovers from Hendai and Kia.

Chinese engineers to avoid vibrations, put rubber silent blocks, in those places where the coupling is attached, but it did not particularly help. This problem could not solve until 2010, even stopped selling all-wheel drive configurations in 2008. But then the coupling moved to the rear gearbox, and put on its place for the cardan shaft, after which the vibrations disappeared.

Chery Tiggo suspension

The suspension is exactly the same as at Toyota equal to the 2nd generation, so there are almost no problems with the suspension. Toyotov's suspensions are distinguished by reliability and durability, so the Chinese engineers did not lose with the choice of someone to copy. But still, the quality of the execution of the pendant parts is clearly, not Toyotovskoy, therefore the durability of the suspension from Tiggo leaves much to be desired. But when the time comes to make repairs, you can install Japanese instead of Chinese parts, then the service life will increase by 2-3 times, however, the price of Japanese parts is more expensive about one and a half times.

Already after 40 thousand km. It will be necessary to make a replacement of bushings of stabilizers, Chinese cost $ 8 per piece, and Japanese - 12. Also, the racks will require a replacement to this run, they cost about the same: 10 for China and 14 for Japan. Approximately after 90 thousand kilometers follows replacing shock absorbers, Chinese stand: $ 65 for the front, and for the rear - 45, Japanese will cost 120 and 90 dollars, respectively. Also to 100 thousand km. Silent blocks of levers should be changed.

Springs can weaken the same mileage, especially the rear, so the clearance of the machine will decrease by 3-4 cm. Replacement springs It will cost 23 dollars for China and 35 for Japan.

And another unpleasant feature of Chery Tiggo are brakes with guide fingers: here screw the rear caliper of disc brakes. In addition, they begin to eat after 3,000,000 km. Which is characteristic of these brakes, this is what the inner pads are very quickly erased, while external remains integer. In this situation, you can try to clean the rods of the guides, or replace them. If the case is running, you will have to simply put new calipers that cost 160 dollars.

Chery Tiggo Security

As you know, Chinese cars on crash tests show not the best results, Chery Tiggo is no exception. This car has 2 frontal airbags and belt pretensioners. In 2011, an ANCAP crash test was carried out in which a version with a 2-liter ACTECO 2.0 motor and a steering wheel on the right side was participated. When the car at a speed of 64 km / h hit the frontal part in the wall, then the pillows were late, and the head of the mannequin hit the steering wheel, in addition, the pedals were very shone in the salon when hit, as a result, the mannequin hurt his head, chest and legs. The passenger in case of such a collision will also remain not without bruises. So, the result of this test is 2 points from possible 16.

When the Toyota is tested in 2002, Toyota Railway 4 According to the ANCAP method, it calmly got a firm 4-ku, since scored 27.1 points out of 34. Still, 4 airbags do their job. Of course, Toyota during the test was not everything perfectly - during the frontal blow, the steering wheel shied slightly into the salon and the dummy on the driver's seat received a light kick on the feet, and the mannequin on the passenger seat was separated by a light bruise of the chest. But the airbags worked clearly and on time, precisely because of this, the bruises are insignificant.

Feelings from driving on Chery Tiggo

Behind the wheel of the front-wheel drive Chery Tiggo with a motor for 2.4 liters and mechanical gearbox you feel pretty good, motor is quite frisky, accelerates about the same dynamics as Toyota Rail4, is, of course, the difference is one and a half seconds in favor of Toyota. When you press gas to the floor, it does not immediately overclock, somewhere half a second car thinks, but only then turns. Transfer switches quickly and easily, the handling is also good.

If you compare Tiggo and Rav4, then the smoothness of the Chinese has even better, the suspension behaves softer, smoothing small irregularities on the road, and during the turns of rolls less than that of Toyota. But in terms of noise, Toyota clearly wins: the engine works quieter, the aerodynamic whistle is smaller and tires is almost not heard. Also, at Toyota Rav4 the suspension does not make up unnecessary sounds, unlike Cheri. And, of course, the brakes of the Chinese are clearly worse what the Japanese has.

24 ..

Chery Tiggo 2005. Diagnostics of malfunctions of the crank-connecting rod mechanism

The working qualities of the crank-connecting mechanism can be estimated by measuring oil pressure, determining the characteristics of the dishes and measure the gaps in certain pairing of the crankshaft.

Measuring oil pressure

Oil pressure is checked using a device consisting of a pressure gauge, a junction sleeve with a cape nut and a nipple and a damper that smoothes the oil ripple during pressure measurement. To remove the pressure testimony in the main line, the device is connected to the oil filter housing, disconnecting it, pre-with the tube of the standard pressure gauge. To test the pressure, the following operations follows:
Connect the measuring device to the oil filter housing;
run and warm the engine to a standard thermal state;
Fix the oil pressure in the main line at idling during the sustainable and nominally frequency rotation of the crankshaft.

Listening to the knocks in the pair of crankshaft

The knocks in KSM are listened to certain pairing using an electronic motorcycle. This method of diagnosis of KSM requires a discharge into an overportable space of sparse pressure by means of a special compressive vacuum installation. It is required to listen to the pairing between the piston finger and the piston body, also between the connecting rod mechanism and the neck of the crankshaft, and then between the sleeve sleeve of the rod and piston finger.

In the case when the reduced oil pressure and the knocks in the crankshaft were recorded, the gaps in the above pairing and replacing the oil pressure sensor will be required. If the oil pressure is lowered, but there are no knocks, then the drain valve of the lubricant system should be adjusted. In the event that the actions made will not lead to normalization of pressure, then the diagnostics of the lubricant system will be checked.

Diagnosis of CSM in the width of the gaps in its pairs

The condition of the crank-connecting mechanism is also determined by the magnitude of the gaps in its conjugates. They are measured using a special device and following the following scheme:
Install the cylinder piston in the compressed state;
shape crankshaft;
Instead of a nozzle, fasten the device in the cylinder head, weaken the locking screw, and then lift the guide up;
turn on the device and bring the pressure to the discharged state;
achieve stable indicators of the indicator by the method of two- or three-time feed cycle;
Fix the gap in the connection between the top head of the connecting rod and the piston finger, and then the total gap between the connecting rod bearing and the top head of the connecting rod.
All gaps in KSM are measured three times and take the average arithmetic value. In the case when the gaps of one of any connecting rod are more permissible values, the engine repair is required.

The malfunction of the crank-connecting mechanism includes a decrease in compression in the cylinders and engine power, an increase in fuel consumption and oil, smoking, uncharacteristic to operate the engine and noise, oils and coolant.

Compression in the cylinder is measured on a heated engine with a compressometer

Before measuring compression, spark plugs are twisted, the rubber tip of the instrument is inserted into the candle hole and turn the crankshaft with a starter at fully open throttle and air dampers for 5-6 s. At the compressometer, the maximum pressure of the end of the compression tact in the cylinder is removed on the pressure gauge scale, and the compressorrograph has a pressure value on a paper form. Measures repeat 2-3 times in each cylinder and determine the average value. The pressure difference in the cylinders should not exceed 0.1 MPa.

Reducing compression in individual cylinders can occur due to the cause or breakage of the piston rings, damage to the cylinder head laying, disorders of adjustment of gaps in the valve mechanism or valve extensions. Cocking the piston rings in the grooves of the piston contributes to the intensive breakthrough of gases in the Carter, which can lead to an increase in the pressure of crankcase gases and computing the oil through the hole for the oil. In this case, each cylinder is poured in 20-25 cm3 of engine oil and repeat the compression measurements. The increase in pressure indicates a looseness in the cylindrophone group.

Malfunction of block head gasket and tightness disruption in the valve mechanism can be detected using a pneumatic air, passing compressed air through the cylinder hole. Air leakage into the adjacent cylinder indicates damage to the laying of the head of the block or the attenuation of nuts or the cylinder head fastening bolts. The cylinder head laying fault can also be detected by the coolant in the pallet. It will be observed a constant decrease in the level of coolant in an expansion tank or radiator and a simultaneous increase in the oil level in the pallet. The oil takes the color from gray to milk-white. Air leakage through the carburetor indicates a malfunction of the intake valve, and through the silencer - the exhaust. Detected faults eliminate.

The reason for the reduction of compression in the engine cylinders with good laying of the block head and valves is the wear of the cylindroport group. The degree of wear of the cylindrophone group, which means its technical condition, is determined without disassembly of the engine with devices and a pneummexter. The principle of operation of the instruments is based on the measurement of air leakage supplied to the engine cylinder. Verification is performed on a warm engine. Candles tweaked, set the piston of the first cylinder into the upper dead point of the end of the compression tact. The crankshaft slow down from turning, turning on the transmission and installing the car to the parking brake. Press the test tip of the device to the candle hole of the first cylinder, the air supply valve is open and the pressure leakage is determined by the air leakage of the pressure gauge on the instrument. Turning the crankshaft, similarly check other cylinders in accordance with the order of their work. Air leakage should not exceed 28% with serviceable valves and laying the block head.

If the engine of the knocks and noise is uncharacteristic, the engine is listened to the engine with a membrane or electronic stethoscope. The rod of the stethoscope is mounted perpendicular to the surface of the engine in the place where knocks and noises listened.

The state of the piston and the piston finger is determined by a sharp change in the rotation frequency of the crankshaft, listening to the walls of the cylinder block along the piston movement line in places corresponding to its extreme positions. The head of the piston finger is distinct and sharp and disappears when the cylinder is turned off from work. With the conjugation wear, the piston ring - the piston groove is listened to the mesmer knocker in the bottom of the ground point in the middle speed of the crankshaft. Worn pistons publish when working with a cold engine, clicking a rattling cut-off sound, decreasing as heated.

The wear of the native bearings and an increase in the gap between the crankshaft crankshafts and the liners are accompanied by a deaf metal sound of low tone with a frequency increasing with an increase in the rotational speed of the crankshaft. The knock is listed at the bottom of the cylinder block along the crankshaft axis with a sharp opening of the throttle. The reason for this knock may also be too early ignition. The large axial clearance of the crankshaft contributes to the appearance of a knocking of a sharper tone with uneven intervals, especially noticeable when a smooth increase and decrease in the rotational speed of the crankshaft. The tone of this sound changes depending on whether the clutch pedal is pressed. The magnitude of the axial gap is determined on the non-working engine to move the front end of the crankshaft when pressed and release the clutch pedal and compare with data from the table.

The connecting rod bearings with wear create a knock as well in the zone of the crankshaft axis, but below or higher by the radius of the crank and when the piston is position in the upper or lower dead points. At the same time, the knock is listening to a sharper and ringing, less power in relation to the knocking of indigenous bearings. The knock disappears in each of the cylinders when it is turned off from the work of the corresponding spark plug.

The sign of the wear of indigenous and connecting rod bearings is also a drop in oil pressure in the engine lubricant system below. Oil pressure is tested by a control manometer with a division price of not more than 0.05 MPa.

Engines with listed faults are directed to the repair.

UAZ Patriot, 2.7 liters, 2009 G.V.
Easy became on the move and acceleration. Especially for mannevism. Became like a good foreign car. I can not find out the car, pumped so that a single foreign car is inferior. Like ride.
Alexander

The first sensations of car owners after the service on UAZ Patriot.

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Good afternoon Vladislav. Today I received a parcel with the throat and immediately set the knot. Do not know the car. Volga Weighing 1.8t with a place tears with slipping according to our Mountains where she used to go to 3-4 transmission now free on 5th and still goes. On the old node speed 90km. accelerated for 3000-3300 rub. Now 2000-2300AB. on overtaking goes fun to switch to reduced gear.. And at the same time, I love the gas pedal. As long as I am very pleased with the result.

I read a lot about the rose tuning and decided to try. My first sensations - the car has become easier to accelerate. Previously, acceleration was from 3000 now from 2000 about. Already there is pickup. I advise everyone, it really works! Although there were big doubts for me. And about the fact that many write that it is a scam, do not add! At first, try ... Yes, most importantly, the gas pedal is barely sting, and the machine cheerfully accelerates. Previously, after resetting gas, there was a feeling that there was someone in the tug, he slows down. ... After the gas reset to the transfer, the car continues to confidently move forward. With the subsequent pressure of the gas, the car has been accepted confidently without a jerk.

Vortex Tingo. 1.8 liters., 2011.
I did tuning a drosel. I go with him for 1.5 years. Effect is. No problems are trying to put up, there was no. The car starts great, both in summer and in -35 in winter. Consumption declined.

The throttle knot was finalized. From the service to the house really enjoyed the ride. No longer need to put pressure on the pedal. Just put my leg and car rides. On the nose boldly undermines. The deep stupid pit was disappeared at a set of speed from 70 to 100km / h. And the consumption has fallen while 0.5 liters. Thank you so much for the perfectly done work !!! Super!!!
After finalizing the car, even with Condela, is actually riding!

The first Cherie Tigu from the conveyor in 2005. Crossovers for the Russian market were made in China and in Russia in Russia - until 2008 at the Avtotor plant in Kaliningrad, and from 2010 on Tagaz called Vortex Tingo. The prototype was the "PARQUITING" TOYOTA RAV4 of the second generation. Under the hood, Mitsubishi licensed power units placed.

Chery Tiggo, thanks to a low price, uses in its class with good demand. As the crossover behaves in terms of reliability in the future, it certainly depends on the operating conditions and literacy of the maintenance. But there is one but .... Among other things, the case of the case plays a small role. In addition to the "pedigree" diseases, there are unexpected - suddenly arising. As a result, with the same operating conditions, someone drives and does not know the troubles, and someone torture themselves to the elimination of infinitely pop-up faults. Therefore, the opinion about this car has an ambiguous owner. It is worth it to add that the native Chinese assembly is better than the Russian.

Engines

Crossover Cherie Tigued by gasoline engines with a working volume of 2.4 l / 130 hp and 1.8 l / 132 hp A little later, 1.6 l / 119 hp appeared. and 2.0 l / 136 hp

Some Tiggo owners with a 2.4-L engine collided with unpleasant valve cliff and rolling destroy. The engine is inclined to "waste" coolant through the lower nozzle of the radiator, the pumping of the pump with a thermostat tube or through the tube itself. Sometimes "give a leak" plugs in the cylinder block.

For the motor of 1.8 liters, it is characterized by difficulties with a cold start in severe frosts - below 15 degrees. The culprit is the coolant temperature sensor. Less often the reason in the "tired" ignition coils. Reducing the thrust and jerking on low revs are often caused by a fault of the air flow sensor.

1.6 L and 2.0 l engines are not suffering from the "registered" sores. But they are not devoid of common problems characteristic of Cherry Tigo.

Many complain about the unsatisfactory quality of the working fluids used in the force aggregate. In particular, the coolant on the Russian assembly vehicles can over time to make a precipitate, which often leads to the encoding of the thermostat in the open position.

Due to the fuel pump fault or the fuel pressure regulator, the engine begins to stroke and stops running the first time, and then it refuses to start when the fuel remains in the tank less than half or 1/3. Whatever the trouble finds out the surprise, there are particularly cutting with them "NZ" in the amount of 5 liters. After a small portion of fuel, the engine easily starts. Such behavior can be observed closer to 100,000 km. The precursor is the slow reaction of the turnover arrow to press the gas pedal. The original fuel pressure regulator rarely serves long, its reliability is very low. "Masters" advise to establish a fuel pressure regulator from Volga or Lanos. Car service workers do not recommend cleaning the benzone pump, as in 90% of cases after that it fails.

Ignition coils and high-voltage wires can "order a long time to live" after 30-50 thousand km. Often, the drivers notice the journey when overclocking on the 2nd gear. In search of solutions, the problem has to be encountered with the replacement of the fuel filter, spark plugs, coils, high-voltage wires, and even the firmware of the ECU. But it does not always end with a positive outcome.

The fuel level sensor soon begins to "instabit", and then put the arrow of the pointer to zero at all. The reason is the wear of the lamellae.

Transmission

Manual gearbox does not differ high reliability. The life cycle of the box is accompanied by noise, crumbs and rockness. Problems with switching appear to 40-80 thousand km. There are cases of destruction of suspended and secondary shafts.

On boxes with the inclusion cable drive can "stick up" the gear selection lever due to the reflow of the cable shirts located too close to the exhaust collector. The problem takes place on Tigo with motors of 1.8 and 2.0 liters. On Tiggo with a 2.4 liter engine, transmission problems may appear in winter - due to moisture in the cable shirt or under the gear shift mechanism corrugation.

The clutch often "ends" after 70-90 thousand km, but there are "lucky", killing 150-160 thousand km to the first replacement. For replacing the clutch, dealers are asking about 10 thousand rubles, in third partner will have to give about 7-8 thousand rubles.

With an automatic transmission of DP0, got tigu as a gift from Reno, not everything is also smooth. So, when running more than 30-40 thousand km on the dashboard, a gear is highlighted with an exclamation mark. At the same time there may be messengers. Cause - Pressure Modulation valves. Valves or have to be replaced, or it will be possible to get rid of the hydroblock. The cost of the valve is 2-2.5 thousand rubles, and the work on the replacement of 4-6 thousand rubles. The officials are asking for repair to 80-90 thousand rubles.

On machines older than 3 years, a box in "P" mode (Parking) may not be lost due to the destruction of the brittle tip connecting the cable and the gear selection lever. Over time, corrosion appears on the contacts of the comb box comb.

All-wheel drive versions of Cheri Tigo, released until May 2008, turned a tangible vibration in the range of 60-100 km / h. Cause - improper balancing of the cardan shaft. To defeat the vibration to the manufacturer managed by transferring the electromaphs to the rear gearbox and the installation on its place of the suspension bearing. Screws, internal and external, often require replacement when running more than 70-90 thousand km.

Chassis

Crossover suspension has an average service life. Racks and bushings of transverse stability stabilizer require a replacement by 40-60 thousand km. Front and rear shock absorbers begin to leak or knock after 60-100 thousand km. Saylent blocks of levers are suitable for the same time. When running more than 100 thousand km weakens the rear springs.

Steering traction serve more than 40-70 thousand km. The steering rail can sound or flush after 60-90 thousand km. There are problems with the pump GUR - gives leaks in the area of \u200b\u200bthe sensor.

After 60-90 thousand km, the rear brake guide calipers are often zero. Questions and ABS block appear, which begins to "buggy". The new block costs about 30 thousand rubles, but its repair is not roads. The cause of the "glitch" of the ABS block can be moisture that fell into the block of contacts on the module.

Conclusion

Many owners compare the purchase of Chery Tiggo with the game in the lottery. You never know how your car will show yourself. It is also worth noting that the prices for original parts are significantly overestimated, and they are keen significantly less than those installed when assembly initially. The resource of analogues is no less than original spare parts.

A system of distributed fuel injection with feedback is applied. The distributed injection is called because the fuel is injected into each cylinder with a separate nozzle. The fuel injection system reduces the toxicity of the exhaust gases while improving the driving quality of the car.
This section also briefly describes the malfunction of the injection system caused by the refusal of certain sensors. The procedure for removing and installing nodes of power supply and motor control is given in subsections and.
In the feedback injection system, the catalytic exhaust gas concentration is established and the oxygen concentration sensor in the exhaust gases (two neutralizers and two oxygen concentration sensors are connected in each other), which provides feedback. Sensors monitor the oxygen concentration in the exhaust gases, and the electronic control unit for their signals maintains such a ratio of air and fuel, in which the neutralizers work most effectively. Moreover, the main control sensor is the sensor installed at the inlet to the catcoptor, and the sensor installed at its output is diagnostic, it determines the quality of the operation of the entire engine control system as a whole. If the engine control unit according to the information of the diagnostic sensor detects an excess of the oxygen concentration in the exhaust gases, which is not fixed by the calibration system along the control sensor signals and mean any system malfunction, it will turn on the engine malfunction signal lamp and enters the error code for subsequent diagnostics in memory .
Warnings.
Before removing any fuel injection nodes, disconnect the wire from the "minus" battery terminal.
Disconnect the battery only when the ignition is turned off.
Do not let the engine if the wire tips on the battery are poorly tightened.
Never disconnect the battery from the on-board network of the car when the engine is running.
When charging the battery, disconnect it from the on-board network of the car, since the elevated current when charging can output the elements of electronics.
Do not allow the heating of the electronic control unit (ECU) above 65 ° C in working condition and above 80 ° C in non-working (for example, in the drying chamber). It is necessary to remove the ECU from the car if this temperature is exceeded.
Do not disconnect from the computer and do not join the connectors of the wiring harness when the ignition is turned on.
Before performing electric arc welding on the car, disconnect the wires from the battery and the wire connectors from the ECU.
All voltage measurements perform a digital voltmeter with an internal resistance of at least 10 MΩ.
Electronic nodes used in the injection system are designed for very small voltage, so they can easily damage the electrostatic discharge. In order to prevent damage to the ECU with an electrostatical discharge: - Do not touch your hands to the ECUs or electronic components on its boards; - When working with a programmable constant storage device (PPZ), the control unit does not touch the microcircuit terminals.
The engine is not allowed with the engine with a neutralized gasoline. This will lead to a rapid failure of neutralizers and oxygen concentration sensors.
When working in rainy weather, do not allow water to enter the electronic components of the fuel injection system.
Check the injection system in such a sequence.
1. Check the connection with the "mass" of the engine and the battery.
2. Check the fuel pump and fuel filter.
3. Check the fuses and switch on the injection system elements.
4. Check the reliability of contacts in the pads with the wires of the injection system elements.
5. Check the injection system sensors.
The overwhelming majority of fuel injection system are caused by the refusal of the following sensors:

The crankshaft position sensor is a complete failure of the injection system, the engine is not started;

The throttle position sensor (installed in the throttle lid) - the loss of power, jerk and dips during acceleration, unstable operation in idle mode;

Cooling fluid temperature sensor - Difficulties with start in frost: you have to warm up the engine, maintaining the turnover of the accelerator pedal, when moving, an engine overheating with a significant reduction in power and the appearance of detonation is possible;

The combined sensor of the mass flow and temperature of the incoming air - when measuring the temperature measurement function, an increase in the fuel consumption, an increase in the level of exhaust gas toxicity, and when the flow measurement function fails, an increase in fuel consumption, a significant deterioration in the dynamics, problems with the engine launch;

The detonation sensor (installed on the left side of the cylinder block under the intake manifold in the area of \u200b\u200bthe 2nd and 3rd cylinders) - the engine is very sensitive to the quality of gasoline, an increased tendency to detonation,
reduction of power;

The oxygen concentration sensor in the exhaust gases (lambda probe) is an increase in fuel consumption, reduced engine power, unstable work at idle.
Possible damage to the catalytic neutralizer of exhaust gases;

Phase sensor - power reduction, increase in fuel consumption;

Speed \u200b\u200bsensor (installed on the gearbox crankcase) - it is possible to deteriorate the dynamic quality of the car and an increase in fuel consumption.