Erasing Fault Codes, ECU Fuses:

1990 Audi V8 Engine Fuse #27 "supposedly" supplies power to the Motronic ECU for maintaining the fault code memory. You "should" be able to remove this fuse #27 for a minute or so to erase any stored fault codes, BUT I have not verified this.

This will also erase any adaptive fuel mixture values stored in the ECU.

The ECU will relearn these values after the car has been driven. You can also erase any stored fault codes by running the OUTPUT tests listed below.

After code 0000 is displayed at the end of the OUTPUT tests, the ECU fault code memory will be erased. Fuses #23 Supplies +12V to the fuel injectors, Fuse #24 supplies +12V to the Idle Stabilizer Valve (ISV) and to the Carbon Canister Solenoid. Fuse #5 Supplies +12V to the Oxygen Sensor heating element.

As kiek bandziau padeda tas 27 saugiklio istraukimas