Fejlkodeindeks · low
P1665
Diesel engine-control fault associated with difficult starting
Diesel engine-control fault associated with difficult starting
Scope: 2.0D · System(s): EMS/diesel
Common causes
- ECU/engine-management fault
- associated diesel control/wiring fault
Quick checks
- Confirm freeze-frame and conditions when the code set
- Inspect connectors, grounds, and harness for the circuit named in the code
- Compare live sensor values vs expected (unplugged/biased sensors are common)
Typical fixes
- Verify power
- grounds and associated diesel DTCs before condemning ECU.