P0014 Exhaust Camshaft Position Timing Over-Advanced Bank 1

P0014 means the exhaust camshaft timing on bank 1 is more advanced than expected. The fault can come from actuator control, oil control, phaser behavior, or mechanical timing.

Code details

Generic OBD-II · P0

System: Fuel / Air
Code type: Generic (SAE / ISO controlled)
Standard: SAE J2012 / ISO 15031-6

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not clear the code and ignore drivability symptoms; cam timing faults can affect idle quality, emissions, power, and catalyst monitoring.

Symptoms of P0014

Check-engine light on, sometimes with rough or uneven running.
Hesitation, surging, or a noticeable change in fuel economy.
Occasionally hard starting or a smell of unburnt fuel.

Common causes of P0014

A failing or contaminated sensor (MAF, MAP, oxygen or air-fuel sensor).
Intake or vacuum leaks, or an exhaust leak near an upstream sensor.
Wiring, connector, or fuel-delivery problems that skew the reading.

Useful checks before replacing parts

Review oil service history and verify oil level, viscosity, and contamination before deeper testing.
Compare commanded and actual exhaust cam timing while watching for a cam that sticks advanced.
Inspect actuator solenoid operation, phaser response, timing-chain condition, and cam/crank correlation data.

Related OBD-II codes

These nearby fuel / air entries can help compare wording and pin down the fault area.