Fault code P0008 – a step-by-step guide to diagnosing and fixing it

Error code P0008 is displayed and the check engine light is on - what does this mean?

The OBD/EOBD system has detected a fault in the camshaft/crankshaft position, specifically a correlation fault between bank 1 camshaft and crankshaft. This DTC P0008 indicates problems with the engine control unit and valve timing, which can lead to a considerable loss of performance.

What causes can this error code have?

• Defective or stretched timing chain
• Worn chain tensioner or chain guide rails
• Defective camshaft sensor (CMP)
• Faulty crankshaft sensor (CKP)
• Damaged sensor cables or plug connections
• Jumped timing chain due to wear
• Defective variable camshaft timing (VVT)
• Clogged or defective oil pressure switch
• Insufficient oil pressure in the engine oil system
• Defective engine control unit (ECM/PCM)

What symptoms occur in parallel with fault code P0008?

• Starting problems: The vehicle is difficult to start or does not start at all
• Loss of power: Significantly reduced engine power and poor acceleration
• Smooth engine running: Engine runs unevenly, jerks or stutters when idling
• Increased fuel consumption: Noticeably higher consumption due to inefficient combustion
• Metallic noises: Rattling or rattling from the engine compartment, especially when starting
• Exhaust problems: Black or white smoke from the exhaust

What symptoms occur in parallel with fault code P0008?

• Eliminating trouble code P0008 requires a systematic approach to identify the exact cause.
• Carry out a complete diagnosis of the timing chain: Remove the engine cover, check the timing chain for wear and correct tension, replace the timing chain, tensioner and guide rails completely if necessary
• Replace camshaft and crankshaft sensors: Remove both sensors, check and clean electrical connections, install new sensors and check signals with diagnostic device
• Repair variable camshaft timing: Check VVT valves and actuators, ensure oil supply to VVT unit, replace defective components
• Check and repair the engine oil system: Check oil level and quality, check oil pump and oil pressure switch, carry out appropriate repairs if oil pressure is low
• Replace wiring and plug connections: Inspect all sensor cables for damage, replace corroded or damaged cables and connectors
• Reprogram or replace engine control unit: Update ECM/PCM software or, if defective, replace and recode the entire control unit