P0014
"B" Camshaft Position - Timing Over-Advanced (Bank 1)
Exhaust camshaft position bank 1 over-advanced or system performance — the actual cam phase exceeds the commanded value. Usually caused by a stuck-open oil control valve, low oil pressure, sludged passages, or a worn cam phaser. Confirm with a scan tool live data: command 0° advance and watch actual.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
What we see in the workshop
ON ALFA ROMEO
Exhaust cam over-retarded on MultiAir engines commonly traces to the variator or a clogged solenoid. Oil condition matters more on these engines than most.
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
Common causes
Ordered by how often each turns out to be the cause.
- Oil control valve stuck (advance)Common
- Sludge in VVT oil passagesPossible
Parts involved
- Camshaft Position Actuator
- Oil Control Valve
- Cam Phaser
P0014 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.