Audi OBD Trouble Code 27

Audi Problems For OBD Code 27

Sub-oxygen sensor signal or heater circuit fault

Fuel injection circuit control

Injector circuit isn't switching when it's told to (TBI)
(MPI) injector circuit #1 not switching right
(turbo) injector circuit #2 not switching right
(all 1990-) injector output driver

QDM A ( Quad-driver module ) - 2nd gear circuit

Injector # control circuit
Injector number # output driver circuit does not respond to the control signal. Check the affected circuit.

Check 27 OBD1 Code For All Audi Models

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