P0270

P0270 / P0271

Diagnosis information - DME V8 DFI

Injection valve for cylinder 4

Diagnostic conditions
- Vehicle voltage > 9 V
- Engine running

Possible fault causes
- Open circuit in activation line
- Short circuit to ground in control line
- Short circuit to B+ in activation line
- Injection valve faulty

Affected contacts on the DME control unit connector
Connector [B]:
- Contact 25
- Contact 74

Affected contacts on the injection valve connector
- Contact 1
- Contact 2