Ecu Encoding: Notes

WARNING: This page is about a different car, the 1993 Audi 90 and 1993 Audi 100. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If ECU does not match vehicle application, the following conditions may exist: poor driveability, increased fuel consumption, excessive exhaust emissions, premature transmission wear, storage of non-existent codes in ECU memory and reduced maximum road speed. Oxygen sensor control, EVAP control and other functions may also be inoperative.