P0507 idle rpm limit fault code

PLACE ANY ISSUES RELATED TO HOW YOUR VAN RUNS. IF IT BOGS, HESITATES, BACKFIRES OR JUST PLAIN RUNS LIKE CRAP...THIS IS THE PLACE FOR IT!
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VWcorvette
I am smitten with my van
Posts: 30
Joined: Mon Apr 08, 2013 6:53 pm
Location: Starksboro, Vermont

P0507 idle rpm limit fault code

Post by VWcorvette »

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. :-s Any chance that could cause an unnaturally high idle?

Thanks, (and yes I've used the search).

George
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