Peugeot 807 Camshaft Sensor Error

I had a similar issue with my 807. Poor starting and reduced power definitely ring a bell. Before replacing the sensor, did you check the wiring harness? Sometimes, the insulation can crack or the connector corrode, leading to lost signal. It's like a loose wire in a lamp; the bulb is fine, but it won't light up if the connection is bad. Have you ruled out any timing issues?

Thanks! I did a visual inspection of the wiring harness, but I didn't check the continuity with a multimeter. I assumed the visual inspection was enough, but perhaps I was too hasty. Regarding timing issues, how would I go about checking that on this engine? Could a slight timing misalignment trigger a camshaft sensor error?

You're right to be thorough. A visual inspection can be misleading; corrosion can hide. Continuity testing is key. As for the timing, it's not a straightforward DIY job without the right tools. While a slightly misaligned timing could trigger a camshaft sensor error, it's more likely the electrical connection, given your symptoms appeared suddenly. Given the error code and your symptoms, I think you should go to a workshop. If it is the connector, it shouldn't be too expensive.

It was as suspected. My local garage confirmed the cable or plug connection was defective. The repair cost was 95€ Thanks for the advice!