P0271

P0271

Fuel Injector, Cylinder 4 - Above Limit

Diagnosis conditions
- Engine running
- Battery positive voltage greater than 7 V

Possible fault cause
- Fuel injector (coil) short circuit
- Short circuit to B+ in wiring
- DME control module

Affected terminals
Terminal III/27

NOTE: Short to B+ causes the fuel injector to be continually closed.

Diagnosis/Troubleshooting