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Peugeot Expert camshaft sensor issue

Hi. I have a 2006 Peugeot Expert, gasoline engine, with only 33862 km on the clock. Recently, it's been starting poorly, and the engine sometimes stalls when idling. The check engine light is also on. I suspect the camshaft sensor is defective, maybe the encoder wheel on the camshafts themselves. Anyone else had a similar issue?

4 comment(s)

Sounds familiar. I had similar symptoms with my Expert. The camshaft position sensor, sometimes called a CPS, tells the engine control unit (ECU) the exact position of the camshaft. If that signal is off, the engine timing goes haywire, causing rough starts and stalling. Have you tried any sensor testing?

Sensor testing? No, I haven't. How would I go about testing the camshaft sensor?

Well, testing it yourself can be tricky without the right tools. The easiest way is to read the error code with an OBD2 reader, which should confirm the camshaft sensor failure. Given the symptoms, it's highly likely the culprit. I ended up just taking mine to a workshop. Saved me a lot of hassle.

Thanks for the advice! I took it to the workshop as you suggested. Turns out the camshaft sensor was indeed defective, just like we thought. They replaced it, and the total repair cost came to 695€. Runs like new now!

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