Engine malfunctions. LADA code errors

P0101

Error P0101 (0101) reports that the air flow rates from the sensor are incorrect. Detailed diagnostics of the controller are required, it may be necessary to clean it.

 

P0121

Break of the electric circuit of the third nozzle. If this problem occurs, the engine may not work properly.

 

P0171

Code P0171 (0171) indicates a malfunction of the fuel supply system. The error occurs due to depletion of the combustible mixture.

 

P0172

Code P0172 (0172) indicates the enrichment of the fuel-air mixture. It is necessary to check not only the cylinders of the engine, but also the elements that affect its formation. This is an air filter and flow meter. The cause of the problem may be a lack of tightness.

 

P0204

If VAZ Euro managed to count VDO code 0204, it indicates a break in the wiring in the control circuit of the fourth cylinder injector.

 

P0300

In the event of a breakdown P0300 (0300), the control unit reports that the threshold value of ignition passes of the fuel-air mixture is exceeded. It is necessary to accurately check their number.

 

P0301

Code P0301 (0301) appears as a result of misfires in the first cylinder of the engine.

 

P0302

Ignition passes in the second cylinder of the power unit. It is necessary to check the operation of the sensors of mass flow of air and oxygen.

 

P0303

Code P0303 (0303) indicates the detection of ignition passes in the third cylinder of the engine.

 

P0304

The occurrence of error P0304 is also associated with ignition passes for toxicity. Their number is much higher than the nominal threshold.

 

P0335

Code P0335 (0335) indicates a synchronization error HF (crankshaft). The first thing to do is check the operation of the crankshaft controller and its conductivity.

 

P0363

Code P0363 (0363) indicates the ignition passes in one of the engine cylinders. The ECU (electronic control unit) cut off the fuel supply to the inoperative cylinders.

Possible causes of the problem:

• regular use of low-quality fuel;
• breach of air tightness;
• no spark;
• damage or physical wear of cylindrical devices.

If the fuel change did not help, it is necessary to diagnose the air collection system. It is necessary to tighten the fastening clamps, replace the air filter element and check the pressure in the ramp (normalized value - no more than 2.8 atm).

Also, it is necessary to diagnose:

• high-voltage wires connected to the defective cylinder;
• spark plugs;
• check for possible oxidation at the cable connection points.

Diagnosis of high-voltage wires is performed using a tester, it is necessary to check the resistance. If the value obtained is more than 10 kО, the cables must be replaced. Also, you need to check the integrity of the spark plugs and make sure there is no soot on their tips.

If these actions did not help to determine the cause, you should diagnose the cylinders. The user should check the compression level, which should be approximately the same in each device. If the values obtained differ by more than 0.5 atm, you need to test the power unit in more detail.

 

P0422

Combination P0422 (0422) indicates a malfunction of the neutralizer device. Literally, the code can be deciphered as "determining the oxygen capacity by comparing the amplitude range of two lambda probes - diagnostic and oxygen." In other words, the aging factor of the neutralizing device is greater than the upper maximum value. It is necessary to check the operation of the sensors and replace them if necessary. The cause of the problem may be poor contact of the controllers with the network.

 

P0441

The combination P0441 (0441) is literally deciphered as "incorrect reaction of the idle speed support system, values above or below the limit value". The fault indicates a malfunction of the adsorber purge valve. The device should be diagnosed and cleaned, if this does not help, the mechanism should be replaced.

 

P0443

Code P0443 (0443) reports a malfunction of the control circuit of the adsorber purge valve.

 

P0444

Driver diagnostics shows an open line in the adsorber purge valve

 

P0485

Engine Cooling Fan Malfunction - Line voltage is less than or greater than the threshold. You need to diagnose the signal coming from the device. The problem may be caused by oxidation or clogging of the contacts on the fan power connector.

 

P0506

Unmarried revolutions of the power unit are reduced.

 

P0507

The combination P0507 (0507) indicates increased speed of the power unit in the idle system. The cause of the problem may be in the sensor or its wiring.

 

P1140

Combination 1140 literally stands for "measured engine load differs from calculation". The causes of this problem can be many, ranging from improper compression to problems with the microprocessor module.

 

P1301

The occurrence of error P1301 (1301) is due to the excess of the number of ignition passes of the protection of the neutralizer. Reducing the number can negatively affect the functioning of the latter.

 

P1302

A large number of flashes in the ignition system to protect the neutralizer.

 

P1303

Ignition passes have been detected in the third cylinder of the engine, which may affect the operation of the converter.

 

P1304

Code 1304 appears as a result of ignition passes in the fourth cylinder of the engine.

 

P1335

Error P1335 is literally deciphered as "monitoring the throttle actuator control: position outside the allowable range".

Possible causes of the problem:

• breakage of the sensor of mass flow of air;
• depleted or enriched fuel-air mixture in the engine cylinders;
• malfunction of the electronic engine control system unit.

To resolve this issue, you can try to retrain the throttle by following these steps:

1. Disable the control unit in any available way. To do this, you can disconnect the battery for several hours or use diagnostic equipment.
2. Activate the inflammation for a few minutes. At this point, the throttle valve should start moving. At this stage, do not squeeze the pedals or start the power unit.
3. Turn off the ignition and wait for about 30 seconds, then turn it on again. Then the engine can be started.

 

P1426

Combination P1426 (1426) indicates a break in the control line of the adsorber purge valve.

 

P1545

Throttle position is out of range. It is necessary to clean the mechanism and adapt it if necessary. It is also necessary to check the connector and the parameters of the damper with the help of diagnostic equipment. If these actions did not help to solve the problem, you need to contact the specialists for the firmware of the microprocessor module or perform this task yourself.

P1578 Error 1578 can be literally translated as a zero adaptation parameter outside the allowable range.

Possible solutions to the problem:

• throttle assembly cleaning;
• throttle adaptation;
• pressing the contact clamps on the throttle assembly.

 

P1602

Code P1602 (1602) means voltage loss in the power supply circuit. With this problem, the engine often does not start because the starter does not receive power. The board of the Multitronics computer may be faulty, but first you need to check the battery charge. The problem may be due to a breakdown of the generator set.

 

P2135

The appearance of the code P2135 (2135) is associated with malfunctions in the throttle mechanism. You need to check the sensor and the damper, it may be stuck in the open or closed position. If the node is operational, check the microprocessor module.

 

P2187

Combination P2187 appears when the depleted fuel-air mixture in the engine cylinders.

 

P2188

In the event of a breakdown P2188, the engine control unit reports over-enrichment of the fuel-air mixture when the power unit is running at non-contact speed. Detailed diagnostics of the fuel supply system is required.

 

P2304

Increased current in the electrical circuit of one of the ignition coils.