P0012Severity: Medium
P0012 – Camshaft Timing Over-Retarded (Bank 1)
Intake camshaft timing is more retarded than commanded.
What it means
The ECU sees camshaft position lagging behind the commanded value. Oil flow, the VVT phaser or the solenoid can be at fault.
Symptoms
- Check-engine light
- Idle vibration
- Loss of power
- Hard starting
Common causes
- Faulty VVT solenoid
- Low/dirty oil
- Clogged oil passages
- Worn phaser
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Frequently asked questions
What does trouble code P0012 mean?
P0012 – Camshaft Timing Over-Retarded (Bank 1). The ECU sees camshaft position lagging behind the commanded value. Oil flow, the VVT phaser or the solenoid can be at fault.
Can I drive with a P0012 code?
You can usually drive short distances, but it's best to have it checked before it gets worse.