Engine

P0014 — Exhaust Camshaft Timing Over-Advanced (Bank 1)

Severity: medium Drive with care, to a shop

What P0014 means

The engine control module compares commanded and actual exhaust camshaft angle on bank 1 using camshaft and crankshaft position sensors. Timing is adjusted by a cam phaser that is driven by oil pressure through a VVT control valve. P0014 sets when the camshaft is advanced further than the commanded position allows.

Symptoms

  • Check Engine light on
  • Rough idle
  • Hard starting
  • Worse fuel economy
  • Reduced power or hesitation
  • Possible stalling
  • Rattle from the engine at startup

Possible causes

  1. Low, dirty, or wrong-viscosity engine oil
  2. Faulty or sticking VVT oil control solenoid
  3. Worn or sticking camshaft phaser
  4. Stretched timing chain or misaligned timing
  5. Low oil pressure or a clogged oil screen
  6. Faulty camshaft or crankshaft position sensor, or damaged wiring

How to diagnose

  1. Scan for codes and freeze frame data and note any other timing or sensor codes
  2. Check oil level, condition, and viscosity; change oil and filter if needed
  3. Test oil pressure with a mechanical gauge if low pressure is suspected
  4. Inspect the VVT solenoid connector and wiring and measure solenoid resistance
  5. Compare commanded and actual cam angle in live data
  6. Command the VVT solenoid with a scan tool and watch the response
  7. Remove the solenoid and inspect it and its screen for debris
  8. Check the timing chain, tensioner, and timing marks if the deviation persists

Common fixes

  • Oil and filter change with the specified viscosity
  • Clean or replace the VVT oil control valve
  • Replace the camshaft phaser
  • Replace the timing chain or belt, tensioner, and guides
  • Replace the camshaft position sensor or repair wiring

P0014 on different brands

Ford · manuals
On Ford, P0014:00 identifies the detected monitor condition of bank 1 exhaust camshaft timing being over-advanced and does not by itself point to a specific failed part.

Questions and answers

Can I drive with P0014?

Short, gentle trips are usually possible, but get it fixed soon. If the cause is low oil or a worn timing chain, the engine can be badly damaged.

Will an oil change fix P0014?

Often yes, if the oil is dirty, old, or the wrong viscosity, because the phaser runs on oil pressure. Clear the code afterward and see whether it returns.

What most often causes P0014?

Poor oil condition and a sticking VVT solenoid are the most common causes. A worn phaser, stretched timing chain, or sensor faults are less common.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.