P1345 Crankshaft and camshaft positions don't match

By: Diagno editorial team · Updated: 2026-10-15

P1345 means: Crankshaft and camshaft positions don't match. The crankshaft and camshaft sensor signals don't line up. Don't drive until the car has been checked. The engine could be damaged. The most common repair costs about €400–800 in Estonia, depending on make and model. The most common cause: timing chain or belt stretched or jumped a tooth.

What it means

The crankshaft and camshaft sensor signals don't line up. The computer sees that the engine timing has shifted.

This is a make-specific code (GM). The exact meaning can vary by model and year.

What you may notice

• Engine light on
• Hard starting or stalling
• Chain rattle on cold start
• Less power

What could be wrong

1. 1Timing chain or belt stretched or jumped a tooth · Timing belt or chain replacement €400–800
2. 2Weak chain tensioner · Timing chain tensioner replacement €400–800
3. 3Faulty crankshaft or camshaft sensor · Crank or cam sensor replacement €90–180
4. 4Camshaft phaser stuck · Camshaft adjuster replacement €250–500

Repair difficulty: Hard

What you can check yourself

Listen to a cold start. If the engine rattles for a few seconds, the chain has probably stretched. Don't drive long distances until it's checked. Best left to a workshop. It needs a diagnostic tool and experience.

How we fix it

1. We check the sensor signals and chain stretch on the diagnostic tool
2. We check the timing marks
3. We replace the chain or belt kit, or the sensor if that's the fault

Standard SAE description: Crankshaft Position/Camshaft Position Correlation