LT1-LT4 Modifications 1993-97 Gen II Small Block V8

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Old 06-10-2010, 01:33 PM
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Lookin good man!

My IAC counts were all over the place at first. We got it stabilized once the PCM gets into closed loop but in open loop after a cold start it has a very hard time idling.
Old 06-10-2010, 01:45 PM
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Originally Posted by Formula383
Lookin good man!

My IAC counts were all over the place at first. We got it stabilized once the PCM gets into closed loop but in open loop after a cold start it has a very hard time idling.
After is is warmed up, in closed loop, and has sit and idled for about five mintes, your IAC counts should be between 20 and 30. If higher than that, open the throttle blades until you achieve 20 to 30 and you will help your cold idle.
Old 06-10-2010, 01:55 PM
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Originally Posted by Ed Wright
After is is warmed up, in closed loop, and has sit and idled for about five mintes, your IAC counts should be between 20 and 30. If higher than that, open the throttle blades until you achieve 20 to 30 and you will help your cold idle.
Thanks Ed. I will give that a shot. I believe the IAC counts were around 40-45 once it warmed up in closed loop. I had to reverse the screw on the throttle stop to get some more adjustability out of the blade.
Old 06-10-2010, 04:21 PM
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Race CAR ......... Looks sick congrats
Old 06-10-2010, 06:25 PM
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Originally Posted by aug181983
Race CAR ......... Looks sick congrats
He he I drove it 60 miles round trip to work today, it was 95 degrees.
Old 06-10-2010, 06:29 PM
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Sounds like a street car to me!



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