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Old 02-03-2009, 04:16 PM
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MT-2500 MT-2500 is offline
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Re: 88 S15 Idles too high when put in gear

Make sure you got a good one.
Check the wiring on it and check to see if the computer is controlling IAC valve.
Is the TBI butterfly good and clean?
PC valve good and no vacuum leaks?
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