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P0170,P0171, P0172

Read the instructions below then start the fault diagnostic procedure.

Symptom: The malfunction indicator lamp is on. Deterioration in drivability, unsteady idling. Any other diagnostic trouble codes (pressure sensor, oxygen sensor).

P0170 , P0171 , P0172

Adaptation faulty


Symptom of fault

The malfunction indicator lamp is on. Deterioration in drivability, unsteady idling. Any other diagnostic trouble codes (pressure sensor, oxygen sensor).

Conditions

The ECM has increased or decreased the injection times to the maximum without it being possible to achieve lambda = 1.0.