P0016 Nissan Altima
Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) · Powertrain Code · Critical
What is P0016?
The crankshaft and camshaft position sensors on bank 1 are out of sync. Often caused by a stretched timing chain, jumped timing, or a failed VVT solenoid.
When the Nissan Altima triggers code P0016 (crankshaft position - camshaft position correlation (bank 1 sensor a)), it typically points to an issue in the powertrain system. This is a critical severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Nissan Altima.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Nissan Altima.
Common Causes on Nissan Altima
- Timing chain stretch on 2.5L QR25DE engine at high mileage
- VVT solenoid (intake valve timing control) stuck from sludge
- Camshaft position sensor signal drift from connector corrosion
- Low oil level or wrong viscosity oil affecting VVT operation
Symptoms
- Hard starting or extended cranking before engine fires
- Rough idle with noticeable engine vibration
- Rattling or chain-slap noise on cold startup
- Reduced engine power and sluggish acceleration
- Check engine light illuminated
- Intermittent stalling at idle
Notes for Nissan Altima
Nissan QR25DE timing chain stretch is common after 100K miles; listen for chain rattle.