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Peugeot 807 check engine light and crankshaft sensor

Check engine light on my 2005 Peugeot 807 gasoline engine, power reduced, poor response, and high fuel consumption. Suspect crankshaft to camshaft reference value. Could a defective crankshaft sensor cause this?

The initial problem involved a 2005 Peugeot 807 with a check engine light, reduced power, poor response, and high fuel consumption. The suspected cause was a defective crankshaft sensor affecting the crankshaft to camshaft reference value. A faulty crankshaft sensor can indeed cause these issues, and after replacement, the engine performance returned to normal.

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4 comment(s)

Those symptoms do point to engine synchronization. Has the timing belt been inspected recently? A degraded or improperly installed timing belt can cause such problems. Or what about the cam sensor?

Timing belt was replaced 40000 km ago. Should I inspect it given the mileage? Could a faulty cam sensor trigger similar symptoms related to the crankshaft to camshaft reference value?

At 40000 km, the timing belt should be good, but check to rule it out. Yes, a faulty cam sensor can cause issues with the crankshaft to camshaft reference value. Given the complexity, consult a qualified mechanic for diagnosis and repair.

I visited a local workshop. The crankshaft sensor was defective. After replacement, engine performance returned to normal. Total repair cost was 340€. Thanks for pointing me in the right direction!

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PEUGEOT

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807