P0008 Engine Position System Performance Bank 1

P0008 points to engine position system performance on bank 1. The module sees crankshaft and camshaft timing relationship or control behavior outside the expected range.

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 performance code can reflect real mechanical timing or oil-control problems.

Symptoms of P0008

Check-engine light on, sometimes with rough or uneven running.
Hesitation, surging, or a noticeable change in fuel economy.
Occasionally hard starting or a smell of unburnt fuel.

Common causes of P0008

A failing or contaminated sensor (MAF, MAP, oxygen or air-fuel sensor).
Intake or vacuum leaks, or an exhaust leak near an upstream sensor.
Wiring, connector, or fuel-delivery problems that skew the reading.

Useful checks before replacing parts

Review cam/crank correlation data, commanded cam angle, actual cam angle, oil pressure clues, and freeze-frame RPM conditions.
Inspect timing chain or belt alignment, chain stretch, phaser behavior, reluctor condition, and recent timing service work.
Check oil level, oil condition, actuator solenoids, and related cam/crank position codes before replacing sensors.

Related OBD-II codes

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