Peugeot 607 Idle Stalling

I had a similar issue with my 607. Stalling at idle and the check engine light were driving me nuts. Have you checked the air intake for any blockages or excessive dirt? That was the first thing I looked at.

Yes, I've visually inspected the intake, and it does seem quite dirty. Did cleaning it resolve your issue completely, or did you have to replace any parts? And did you have to take your car to the workshop?

Cleaning helped a little, but the problem came back after a short while. Eventually, I had to replace the idle air control valve. Honestly, I'd recommend taking it to a workshop; they'll be able to diagnose it properly. Cost me around 425€ in the end. Good luck!

Thanks for the advice! I'll take it to a workshop this week and get it sorted. It's good to know what to expect. I will mention the air valve.