P0012moderate severityPowertrain
Intake Camshaft Position Timing Over-Retarded Bank 1
on 2016 Chevrolet Impala 2.5L I4 Ecotec · AWD
What this code means
The intake camshaft timing for Bank 1 is more retarded than the PCM commanded position.
Symptoms
- Check Engine Light
- Loss of power
- Poor acceleration
- Rough idle
Common causes
- VVT solenoid failure
- Low oil pressure
- Oil passage blockage
- Timing chain wear
Diagnostic steps
- Check oil level and condition
- Test VVT solenoid
- Check oil pressure
- Monitor cam timing with scan tool
Repair notes
Replace VVT solenoid or clean oil passages.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1