P1021, P1022

/ 9-3 (9400) / 1999 / 2. Engine / Motronic 2.10.3 (B204i) / Fault diagnosis, diagnostic trouble codes / P1021, P1022

Read the instructions below then start the fault diagnostic procedure.

Symptom: The engine is running on only 3 cylinders, CHECK ENGINE lamp (MIL) comes on

P1021, P1022

Injector Circuit Cylinder 2. Open / Short to Ground.

Injector Circuit Cylinder 2. Short to B+.

Fault symptoms

The engine is running on only 3 cylinders, CHECK ENGINE lamp (MIL) comes on

Conditions

Break or short circuit to ground/B+ in the circuit to pin 34.