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

lt1 idling wild, bad hesitation

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Old May 18, 2008 | 09:45 PM
  #1  
pro94lt's Avatar
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From: central Arkansas
lt1 idling wild, bad hesitation

its a 94, hotcam, 8psi procharged, its idling wild once it warms up then it will almost die and sometimes it does. the opti has gave me similar problems before but i changed it and still the same problem, its throing no codes, could it be the tps? help I took it to the track and was getting 2.5 60ft times out of it from it stumbling when i launched it then the tires would break loose. looked like a fool. any others have this problem?
Old May 19, 2008 | 12:00 AM
  #2  
blk95's Avatar
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has it been tuned for the cam?
Old May 19, 2008 | 07:18 PM
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pro94lt's Avatar
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From: central Arkansas
yes it has been tuned and has about 10k miles on it since all was good, seems like it started after i put a clutch in it. Its got me puzzled.
Old May 19, 2008 | 07:32 PM
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red 95 z28 lt1's Avatar
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From: long island N.Y.
if it only happens after it warms up the only thing i can think of is 02 sensors, or maybe a problem with a knock sensor but that will happen cold or warm but more so warm
Old May 20, 2008 | 01:35 AM
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From: Kernersville, NC
Kinda sounds like it's going crazy when getting into closed loop mode. Makes me think it's a sensor issue, barring any mechanical issues. Do you have a scanner? Something like Autotap to look at the sensors? I wonder if your water pump temp sensor is okay?
Old May 20, 2008 | 10:09 PM
  #6  
pro94lt's Avatar
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From: central Arkansas
all i have is a obd1 code reader. I've had the car almost three years and its never throwed a code. or the check engine or service light has never came on. I have not tested the throtle positioning sensor yet,will do this week. could the coolant sensor cause it to act this bad? I just hate spending money for repairs when it could go for speed.
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