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Idle Speed

robwright

robwright

New member
Just occasionally since it's been warm I have noticed that my car will occasionally idle at around 1100 RPM when warm instead of the usual 900. Then I got to thinking does the idle speed increase when the fans are on. I wasn't aware that it should. Was just a thought. Can anyone shed any light????
 
Could be nothing more than a bit of stickiness in the MAF or throttle body, but mine was doing this when I bought it and it got steadily worse, then went the other way and would hold idle at all - turned out to be the DME temperature sensor packing up..........
 
Yes I am thinking of changing this as a matter of course. Fairly cheap on europarts. Have been having a little trouble with the air flow meter in the last week also.
 
Yes everything in my brain tells me that it should be constant even with rad fans, heater fan on full blast and air con switched on!! Guess I am just stabbing in the dark to not convince myself that I should try a new air flow meter. Alasdair don't suppose you could add one to my shopping list for diagnostics???? Oh and an outside temp sensor as well.
 
I'd check all the tubes and elbows/tees in the vacumn system thoroughly . You may have a slight leaks somewhere out of sight under the inlet manifold . You can paint or spray a soapy solution on all the joints when running should show up any leaks
 
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