Why at the worst times??

cobraetti · March 24th, 2007, 08:10 PM

Only when I am sitting at idle(like in a traffic jam) the idle will droop bigtime. When I am out and about in normal traffic conditions I never seem to have any problems. I have a new IAC TPS is w/in range, I don't know what to do

5literJeff · March 25th, 2007, 02:14 AM

Do you have underdrive pullies on the car? And do you have any engine codes? Have you checked your engine vaccum for possible leaks? Is there a heavy drain on the alternator for any reason like an aftermarket system playing and high amp electric fan(s) running with the stock 75 amp alternator? All could be possible causes of rpm drop at idle. I am sure other people on here can think of others too thats just off the top of my head.

March 24th, 2007, 08:10 PM	#1
cobraetti Regular 2001 svt cobra no way (IRS) Join Date: Aug 2006 Location: goose creek,sc Posts: 304 iTrader: 0 reviews	Why at the worst times?? Only when I am sitting at idle(like in a traffic jam) the idle will droop bigtime. When I am out and about in normal traffic conditions I never seem to have any problems. I have a new IAC TPS is w/in range, I don't know what to do __________________ Build #1249 MM New Edge Crew Member# 6

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March 25th, 2007, 02:14 AM	#2
5literJeff Regular Join Date: Jul 2006 Location: Blue Ridge, South Carolina Posts: 260 iTrader: 0 reviews	Do you have underdrive pullies on the car? And do you have any engine codes? Have you checked your engine vaccum for possible leaks? Is there a heavy drain on the alternator for any reason like an aftermarket system playing and high amp electric fan(s) running with the stock 75 amp alternator? All could be possible causes of rpm drop at idle. I am sure other people on here can think of others too thats just off the top of my head.

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