Fault-Tracing Information

Engine Very Jerky During Acceleration

Trouble Code Condition(s)
- Diagnostic trouble codes (DTCs) in Motronic 4.4 engine control module (ECM) absent.
- Diagnostic trouble codes in AW 50-42 transmission control module (TCM) absent.
- Engine is hot
- Fault is permanent.

Possible Source(s)
- Defective / damaged spark plugs, ignition cables, rotor etc.
- Moisture in spark plug wells
- Resistance in mass air flow (MAF) sensor.

^ To start fault-tracing proceed to Checking Rotor, Distributor Cap and Spark Plugs section.