brian in buddina Posted 23April, 2023 Report Share Posted 23April, 2023 Went to Lakeside yesterday, to watch. Met a mature gentlemen in driving an Alvin open wheeler. Found out he also had a 1988 944S, exactly the same as mine. He asked if I knew about a fix for a high idle when WARM. He said it was 2500rpm! When cold it started normally and idled at correct rpm. I suggested places on line he could check to get an answer. He said he was not on-line and not into “technology”. So I volunteered to find a answer and call him back. He gave me his landline number. I’ve checked Rennlist, Pelican Parts & Clark’s Garage and there seems to be a variety of answers, but not as high as his 2500 rpm: vacuum leak ICV sticking TPS Has anyone had similar issues? Is there some testing that needs to be done to isolate the issue? Any assistance would be much appreciated. Quote Link to comment Share on other sites More sharing options...
tomo Posted 24April, 2023 Report Share Posted 24April, 2023 Vacuum leak would be a good starting point . brian in buddina 1 Quote Link to comment Share on other sites More sharing options...
LeeM Posted 24April, 2023 Report Share Posted 24April, 2023 My a/c 911 does it. Been told it's probably vacuum leak somewhere. Should sort that out one day 🙄 brian in buddina 1 Quote Link to comment Share on other sites More sharing options...
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