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

Car has a miss and I'm stumped

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Old May 29, 2007 | 01:11 PM
  #1  
gas huffer's Avatar
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Car has a miss and I'm stumped

Ok new opti,coil,plugs,wires,icm module,temp sensor,o2's,cleaned maf.
I notice the car has a miss and sometimes even pops, when it is warmer out it runs even worse. i noticed my throttle body was very dirty like black and so were the inside of the hoses. i also tried lookin at the iac valve and it was all the way out. im not sure if it can be pushed in when its not plugged in. the nosal on the map sensor was very black also. so basically im replacing one thing at a time until i find something. any help will be appreciated . thanks
Old May 29, 2007 | 02:33 PM
  #2  
2000GTP's Avatar
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From: Aurora, IL
It would be worth a shot to clean out the TB and IAC valve really well with some throttle body cleaner if they are as dirty as you say.
Old May 29, 2007 | 02:43 PM
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gas huffer's Avatar
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yeah i did but its still doing the same thing.
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