P0016 Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A

P0016 points to a crankshaft-to-camshaft position correlation problem for bank 1 sensor A. The module sees cam and crank timing that do not agree.

Code details

Generic OBD-II · P0

System: Fuel / Air
Code type: Generic (SAE / ISO controlled)
Standard: SAE J2012 / ISO 15031-6

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not replace cam or crank sensors automatically; a real timing correlation fault can be mechanical and may worsen if ignored.

Symptoms of P0016

Hard starting or a long crank.
Rough running, stalling, or reduced power.
Check-engine light, sometimes with a rattle.

Common causes of P0016

A stretched or jumped timing chain with worn guides/tensioner.
A VVT actuator or oil-control-valve fault.
Crank or cam sensor / reluctor problems.
Timing service previously set one tooth out.

Useful checks before replacing parts

Compare cam/crank sync data and review freeze-frame RPM, load, and oil-temperature conditions.
Inspect timing chain or belt alignment, chain stretch, phaser position, reluctor damage, and recent timing-service work.
Check cam and crank sensor wiring and signals only after considering mechanical timing and VVT actuator behavior.

Related OBD-II codes

These nearby fuel / air entries can help compare wording and pin down the fault area.