Check Engine Code
P0012
"A" Camshaft Position — Timing Over-Retarded (Bank 1)
What P0012 means
Opposite of P0011: the Bank 1 intake camshaft is retarded relative to commanded. Same root causes — typically dirty oil or a sticking VVT solenoid.
Symptoms
- Check engine light
- Rough idle
- Reduced power
- Possible misfire codes
Likely causes (most common first)
- Dirty or low engine oil (try this first)
- Failed VVT solenoid
- Clogged oil control valve screen
- Worn cam phaser
- Stretched timing chain
Can I keep driving?
Medium — drivable but fix soon
Typical repair cost
DIY fixes can start near $0 (parts only). Shop repairs for P0012 typically run up to $500 depending on the underlying cause and vehicle. Start with the most common cause — Dirty or low engine oil (try this first) — before throwing parts at it.
Recommended parts & tools for P0012
Our buyer’s guides cover the tools and parts that pair with AXLY:
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