Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)
The exhaust camshaft on Bank 1 is rotating too far ahead of where it should be, like a timing belt that's slipped forward. This throws off the engine's valve timing and emission control.
The ECM compares camshaft position sensor signals to crankshaft position to calculate timing advance. It expects the exhaust cam to be within a specific degree range relative to the crank. When actual timing exceeds the maximum threshold for too long, P0014 sets.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Exhaust Cam Timing Advance (Bank 1) | 0 to 25 degrees BTDC (varies by strategy) | Greater than 25-30 degrees advance for sustained duration |
| VVT System Response Time | Within 1-2 seconds of command | Fails to correct or over-advances repeatedly |
Code P0014 is a moderate fault. You can generally drive to a workshop, but avoid long trips or high-load driving (motorway, uphill towing) until it is diagnosed. If the code keeps returning after clearing, or if you notice the symptoms listed above worsening, do not delay professional diagnosis. Many moderate codes have multiple possible root causes — a mechanic with live OBD data can identify the exact fault more efficiently than part-by-part trial and error.
Once the fault is repaired, P0014 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.