The main signs of a DFM failure

The mass air flow (MWR) sensor is a part that determines the amount of air flow supplied through the air filter. This mechanism is located near the same filter. Despite its small size, this sensor plays a very important role in the car. Damage to DFMS can be negatively reflected in the operation of the entire engine. Therefore, in order to avoid unpleasant consequences, it is necessary to regularly diagnose this part and, if necessary, to repair it or replace it.

Symptoms of DFMD

Determine that the air flow sensor is defective, it is possible by the following symptoms. First, it is displayed in an increased fuel consumption. Secondly, the signs of a fault in the DMRM may be the loss of engine power. It is also worthwhile to sound an alarm when there is a "Check Angin" error on the dashboard. Another symptom is the bad start-up of the engine "on hot".

However, it is also worth remembering that all of the above signs of a DFM fault may indicate other breakdowns. In particular, a bad start-up of the engine is manifested in a poorly regulated carburetor. The loss of engine power may be hidden in a dirty filter. The "Check Angling" lamp appears when the sensor of the lambda probe is faulty . And the reason for the increased fuel consumption is often a contaminated filter. Therefore, in order to find out whether the car really "stands out" because of the air flow sensor, you need to get to it yourself and diagnose it yourself.

The best diagnostic equipment for DMRV will be a motor tester. However, if you do not have such a tool at home, you can use a conventional voltmeter with a scale of 2 V. In order to determine whether these are signs of a VHF fault or not, insert the pin into contact between the yellow wire and the seal until it stops. Then turn on the ignition and look at the scale. Ideally, the voltage should vary from 0.98 to 0.99 Volts. A small error of 0.03V is permissible . If the arrow on the scale has shown less than 0.95 or more than 1.03V, this indicates that the signs of a fault in the VAZ 2110 VFD were confirmed. But the sensor should not be changed immediately. We still have a chance to bring him back to life.

So, unscrew the fastening elements of the unit and proceed to repair. To do this, prepare an aerosol cleaner carburetor and bend the tube at a right angle, preheating it with a match. Next, cut the tube in such a way that the jet beat aside, and the part itself was straight. The latter is introduced to a depth of 9-10 millimeters in the upper channel of the DMRV and clean the resistor. It is strictly forbidden to use cotton swabs in this case. After a few minutes we repeat everything anew. After the part is dry, put it back into the case and measure the voltage with the same voltmeter. If the data obtained are consistent with the above values, the DMRW has been successfully repaired. Well, if the needle fell below 0.95 V, you need to do a complete replacement of the part. The other is not given.