LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Idle fluctuation?????

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Old Dec 15, 2003 | 02:46 AM
  #1  
S.J.S.'s Avatar
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Idle fluctuation?????

SUp all. Okay this is the deal, when my car warms up and I stop at a light or something the car will idle at 1k and drop to like 800 and right back to 1k. It will do this a couple times. When I take it out of gear or in park it works fine. Could it be the aftermarket TB? It worked terrific all this time. What about the IAC???
Old Dec 15, 2003 | 07:20 AM
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I feel your pain. I just took off my 52mm bored stock TB b/c it would rev at 1500-2000 when I let off the gas(6speed)and push in on clutch. I can rev it really quick and it kicks down until the next time I stop. There seems to be no bind so I imagine it must be an adjustment but I haven't got any help on adjusting this yet.
Old Dec 15, 2003 | 08:18 AM
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IAC or some vacumn leak somewhere?????
Old Dec 15, 2003 | 08:48 AM
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Is there adjustment on the IAC? It works fine when on the 48mm stock one but maybe it's acting up on the 52(?). Thanks,
Old Dec 15, 2003 | 11:00 AM
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But if it was that then why would it be fine for the first 1000 miles???
Old Dec 15, 2003 | 06:31 PM
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ttt
Old Dec 16, 2003 | 07:19 AM
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anyone else?????????????????????????
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