P0271
P0271Cayenne V8 - injection valve on cylinder 4 - above limit value
Diagnostic conditions
- Engine running
- Battery positive voltage > 8 V
Possible cause of fault
- Short circuit to B+ in control line
- Injection valve faulty (internal short circuit)
- DME control module faulty
Affected terminals
DME control module plug A, pin 24, and pin 2 of injection valve
Diagnosis/troubleshooting
NOTE: Connection KE 7 is located on the bottom of the radiator tank E-box.
Cayenne V6 - injection valve on cylinder 4 - above limit value
Diagnostic conditions
- Engine running
- Battery positive voltage > 8 V
Possible cause of fault
- Short circuit to B+ in control line
- Injection valve faulty (internal short circuit)
- DME control module faulty
Affected terminals
DME control module plug B, pin 113, and pin 2 of injection valve
Diagnosis/troubleshooting
NOTE: Connection KE 7 is located on the bottom of the radiator tank E-box.
