P0016

Serious, act now

Crankshaft/Camshaft Position Correlation (Bank 1 Sensor A)

What this code means

The crankshaft and camshaft positions do not match what the ECU expects - the mechanical timing may be off.

Common symptoms

Check engine light, hard start
Rattling from timing area
Reduced power, possible limp mode

Most common causes

Stretched timing chain or jumped belt
Faulty VVT/cam phaser or solenoid
Failed cam or crank sensor
Low oil pressure affecting VVT

Can you keep driving?

Timing problems can lead to catastrophic engine damage on interference engines - get it inspected before driving further than necessary.

Do not guess in the dark

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Descriptions are for guidance only. Accurate diagnosis requires a workshop inspection.