P0014 Code: Camshaft Timing Over-Advanced (B1) — Causes & Fix
P0014 means the exhaust camshaft timing on bank 1 is over-advanced — the cam is more advanced than the ECM commanded.
- Applies to
- All OBD-II vehicles (any make or model)
- Est. repair cost
- $50 – $700
- Time to fix
- 30 minutes – 2 hours
What it means
Causes include a stuck VVT oil-control valve, a failed cam phaser, dirty oil, or timing-chain wear. P0014 is a generic OBD-II powertrain code defined in the SAE J2012 standard, so it applies to virtually any 1996-or-newer petrol car or light truck regardless of make. Fix the underlying fault, then clear the code with an OBD-II scan tool — it will return if the problem isn't resolved.
Symptoms
- Check engine light on
- Rough idle, hesitation, or reduced power
- Possible timing rattle
How to fix it
- 1
Test the VVT oil-control valve
1. Check the OCV/solenoid for sticking (often from sludge). 2. Clean or replace it.
- 2
Inspect phaser and timing
1. If the valve is good, inspect the cam phaser and timing chain. 2. Repair, then clear the code.
Frequently asked questions
Is P0014 serious?
It can worsen running and, if a phaser/chain is involved, get expensive. Start with oil and the control valve, which are the cheap common causes.
Last updated July 19, 2026
Guidance only — always consult a qualified professional or the official service manual before carrying out repairs.