Peugeot 406 Camshaft Sensor Issue

Sounds familiar! I had something similar happen with my 406. Engine was a pain to start, felt like it was choking, and the check engine light was on constantly. Did you try wiggling the sensor connector? Sometimes it's just a loose connection.

Did your diagnostic process also point to the camshaft sensor, and did you notice any other issues besides what you mentioned?

Yeah, the code reader pointed straight at the camshaft sensor. Honestly, I didn't mess with it too much myself. After checking the basics, I just took it to a workshop. Turned out to be the sensor and a dodgy wire. Best to get it checked properly.

I took your advice and got professional help. It was a defective camshaft sensor and a bad connection, just like we discussed. The repair, including parts and labor, cost 95€. Thanks for sharing your experience; it really helped speed things up.