| DTC Data Sheet | |
| System | Powertrain |
| Standard | SAE J2012 / ISO 15031-6 |
| Fault type | Performance |
| Official meaning | B Camshaft Position – Timing Over-Advanced or System Performance (Bank 1) |
Bank 1 exhaust cam timing is over-advanced versus commanded, or the actuator response does not match expectations. Performance fault on the exhaust phaser side.
Look up your vehicle's recalls, specs & safety ratings — free VIN decoder with NHTSA data
P0014 Quick Answer
Bank 1 exhaust cam timing is over-advanced versus commanded, or the actuator response does not match expectations. Performance fault on the exhaust phaser side. The first thing to check is engine oil level, condition, and viscosity — many P001-range faults are oil-driven before they are electrical.
What Does P0014 Mean?
B Camshaft Position – Timing Over-Advanced or System Performance (Bank 1). Bank 1 exhaust cam timing is over-advanced versus commanded, or the actuator response does not match expectations. Performance fault on the exhaust phaser side.
Symptoms
- Check engine light
- Cold-start rattle from the exhaust phaser locking pin
- Rough idle, especially after extended idle
- Reduced low-rpm torque
Common Causes
- Stuck exhaust VVT actuator (mechanical or hydraulic lock)
- Blocked oil control solenoid screen
- Sludged oil galleries to the exhaust phaser
- Timing chain stretch — mechanically advances cam timing
- Wrong oil viscosity disabling phaser response
- Failed exhaust cam phaser internal vanes or lock pin
Diagnosis Steps
You’ll need a scan tool capable of reading live powertrain data, a digital multimeter, and access to the wiring diagram for the specific platform.
- Verify oil level and viscosity.
- Compare commanded vs actual exhaust cam phase. Performance fault sets when actual exceeds commanded by the calibrated threshold.
- Inspect VVT solenoid screen and clean / replace.
- Check timing chain stretch.
- On high-mileage engines, plan for cam phaser replacement if the cold-start rattle is present and chain stretch is within spec.
Possible Fixes
- VVT solenoid + screen replacement
- Oil change with correct viscosity
- Timing chain kit
- Exhaust cam phaser replacement
Can I Still Drive With P0014?
The vehicle will usually still drive with P0014 stored, but performance and fuel economy are degraded. The fault disables or limits the affected actuator, and the PCM may inhibit emissions monitors. Drive to a workshop, but don’t ignore the code long-term — VVT and EVAP failures often cascade into related faults if left untreated.
How Serious Is This Code?
P0014 is a moderate-priority fault. It will not prevent the engine from running but will affect drivability, emissions, and over time can damage related components (cam phaser wear, catalytic converter on EVAP-related codes). Address within a few drive cycles.
Brand-Specific Guides for P0014
Manufacturer-specific diagnostic procedures with factory data and pin-level details for vehicles where this code commonly sets:
FAQ
Will P0014 clear itself?
Only if the underlying fault was intermittent and self-corrected. Most P0014 root causes (failed solenoid, wiring damage, blocked screen) are persistent and require physical repair.
Can I clear P0014 without fixing it?
You can clear it with a scan tool, but it will return as soon as the fault condition reappears — typically within one or two drive cycles.
Is P0014 related to other codes?
Often, yes. Cam-position and EVAP faults frequently set adjacent codes — if P0014 is present, scan for related codes in the same range and address them as a group rather than one at a time.