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Old 12-02-2004, 21:24   #1 (permalink)
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frown Surging when cold

I have an EB MPI 3.9L which has a surging/hesitation problem when the car is cold. It goes away after a minute or two but it's really annoying. So far i have replaced the temp sensor in the thermostat housing, tried another CPU,tried 2 other TPS sensors,swapped a fuel regulator, all to no avail.
Does anyone have any advice on where else to look? I'm running out of ideas.
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Old 12-03-2004, 02:21   #2 (permalink)
Two SC 61's = trouble
 
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Re: Surging when cold

Turn up idle or clean idle speed control...Or disconnect isc adjust idle then reconnect isc...Check for other inlet leaks....
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