B Camshaft Position - Timing Over-Advanced or System Performance Bank 1
What it means
P0014 means the exhaust camshaft on bank 1 is timed more advanced than the ECM commanded, or the variable-valve-timing system isn't responding correctly. The usual culprits are a dirty or stuck VVT oil-control solenoid, old or low engine oil, or a worn cam phaser. It shows up as rough running, hard starts and lost power.
Can I keep driving? Usually drivable short-term, but expect rough running, hard starts or stalling; fix soon to avoid accelerated timing-component wear.
Real-world scan data
Appears alongside · share of P0014 scans
Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.
Common symptoms
What you'll notice
- Check-engine light on
- Rough idle or rough running
- Hard starting or occasional stalling
- Reduced power and hesitation on acceleration
- Rattle or ticking from the front of the engine (cam phaser)
Common causes
Most likely first
- Dirty, low, or wrong-viscosity engine oil clogging the VVT (oil-control) solenoidLikely
- Stuck or failed camshaft oil-control valve (VVT solenoid)Common
- Stretched, worn, or jumped timing chain / worn cam phaserCommon
- Faulty exhaust camshaft position sensorLess often
- Damaged wiring or connector at the solenoid or sensorLess often
How to diagnose & fix
Work through it in order
- Check engine oil level and condition first — change oil and filter with the correct grade if it's dirty or low.
- Inspect and test the camshaft oil-control (VVT) solenoid; clean or replace it.
- Scan cam/crank correlation and check the timing chain, guides, and tensioner for wear.
- Inspect the cam position sensor and its wiring/connector.
- Replace the cam phaser if it's worn, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0014?+
Can I just clear P0014?+
Related codes
Read & clear P0014 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.