lindakaiser1
Fiat Petra Stalling Engine
Summary of the thread
A 2013 Fiat Petra is experiencing engine stalling at idle, with the check engine light indicating a potential issue with the idle air control (IAC) valve, as suggested by error code P0505. A heavily contaminated intake could be a contributing factor. Cleaning the throttle body and intake thoroughly is recommended, but if the problem persists, professional replacement of the IAC valve and intake cleaning may be necessary to resolve the issue.
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4 comment(s)
lindakaiser1 (community.author)
Thanks for the tip! I haven't checked the throttle body specifically, but I did spray some general intake cleaner in there. Maybe I wasn't thorough enough. You mentioned a specific error code? I'm getting P0505, which confirms the IAC valve issue.
thomasfox3
Yup, P0505 is definitely the IAC valve. I tried cleaning everything myself, but honestly, it was a pain and didn't fully solve the problem. Ended up taking it to a workshop. They confirmed the intake was heavily contaminated and replaced the valve. Saved me a ton of time and frustration in the end.
lindakaiser1 (community.author)
Appreciate the advice. Looks like I'll be heading to the shop. Got a quote for around 425€ for the IAC valve replacement and intake cleaning. Hopefully, that'll sort it out. Thanks again!
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FIAT
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PETRA
thomasfox3
Hey, I had a similar issue with my Petra. Same stalling engine symptom, and the check engine light was on too. Did you check the throttle body for gunk? That's usually the first place to look when you suspect intake issues. Give it a clean and see if that helps. What error code did you get?