P1388
Variable Cam Timing Over Retarded Bank 2
Severity
⚠️ MediumCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–133 (est.)
Symptoms
- Reduced engine power
- Increased fuel consumption
- Rough engine operation
- Check Engine Light Illuminates
- Deterioration in acceleration dynamics
Causes
- Contaminated or insufficient engine oil pressure
- VVT solenoid valve malfunction
- Mechanical wear of the VVT mechanism
- Problems with camshaft position sensors
- Open or short circuit in VVT control circuit
How to Fix
- Check the level and condition of the engine oil
- Diagnose oil pressure in the system
- Check the operation of the VVT solenoid valve
- Investigate the mechanism for changing timing timing for wear
- Check the integrity of the control circuit and sensors