Audi a62.0t newspaper bank 1 2 fuel metering system. Fault.

Audi a62.0t reported the oil measuring system of bank 1. 2. Fault: The fuel measurement system of bank 1 is too rich. The common reasons for this phenomenon are as follows:

Carbon canister solenoid valve, carbon canister and fuel vapor pipeline are faulty; The gasoline at the high-pressure fuel pump leaks into the crankcase; Wrong installation of gasoline filter (400kPa to 600 kPa); Fuel injector failure.

Air inlet is not smooth due to the failure of air filter element and pipeline; Sensor error signal leads to load signal error; Excessive carbon deposition in the combustion chamber; Oxygen sensor failure; Engine ECU internal fault; Other faults.

Solution: Cleaning the throttle can reduce fuel consumption and make the engine flexible and energetic. Reduce the cylinder mixture.

Extended data:

Throttle fault and its solution;

1, hard failure. The resistance part of potentiometer is formed by spraying a layer of carbon film on polyester substrate, which is actually a very low-level preparation process with low wear resistance. To put it bluntly, it is not as good as the potentiometer of our usual household appliances.

The sliding contact consists of a row of opposing claws made of fine steel. Note that it is the reverse claw. In addition, there is no protective agent on the carbon film, and the falling carbon powder leads to poor contact, which is inevitable.

2. Soft fault. Most of the time the throttle is too low. Air flows through the gap of the throttle at high speed (tens to hundreds of meters per second), and the influence of dust on the airflow exceeds the adjustment ability of the throttle.