In looking to diagnose I found one of the hard vacuum lines had rubbed through. I replaced it in the hope that this would take car of a probable vacuum leak. On the test drive after about 10 miles the fault returned. I need to pull the dog house again and start hitting the manifold and other spots for vacuum leaks. Any chance I should just replace the IAC?
Also, while checking freeze frame data I noticed the ECT showing -40* Celsius. That ain't right. Any chance that could cause an unnaturally high idle?
Thanks, (and yes I've used the search).
George
P0507 idle rpm limit fault code
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Topic author - I am smitten with my van
- Posts: 30
- Joined: Mon Apr 08, 2013 6:53 pm
- Location: Starksboro, Vermont