P0016
High SeverityCrankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
Engine System
What Does P0016 Mean?
The crankshaft and intake camshaft positions are not synchronized on bank 1. This indicates a timing problem that can cause rough running or no-start conditions.
Common Fix
Replace timing chain and tensioner
Estimated Cost (DIY)
$150 - $500
Symptoms
- ⚠️Rough idle
- ⚠️Engine misfires
- ⚠️Hard starting or no start
- ⚠️Rattling noise from engine
Common Causes
Stretched timing chainlikely
Failed timing chain tensionerpossible
Faulty camshaft or crankshaft sensorpossible
Jumped timing chainunlikely
How to Diagnose P0016
- 1Listen for timing chain rattle on cold start
- 2Compare cam and crank sensor signals with scan tool
- 3Inspect timing chain tensioner
- 4Check VVT solenoid function
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Frequently Asked Questions
- Is P0016 serious?
- Yes, P0016 can indicate a stretched or jumped timing chain. If the engine rattles on startup, get it checked immediately to prevent catastrophic engine damage.
- Can a sensor cause P0016?
- Yes, a faulty camshaft or crankshaft position sensor can trigger P0016. Sensor replacement is much cheaper than timing chain work.