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

Why is my lt1 acting up like this!!!!

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Old 10-14-2009, 12:02 AM
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Default Why is my lt1 acting up like this!!!!

so i have about 450 miles on a full rebuild 355 forged and the cc503 untuned... i know i know it will get tuned asap but the first 400 miles i could drive it everyday no questions asked but ever since it started raining i think it fouled out my O2's and started running like complete crap everytime it reaches opereating temp so no big deal i thought they would foul out because i just spliced them and butt conntected them back together... so i bought new ones and sodered the connections and now still my cars runs like crap once it gets up to opereating temp so i replaced the plugs as well thought maybe i fouled those out and i replaced my IAC but still it bogs out and wants to die everytime i pull up to a red light and it has died a couple of time this one really has me stumped and i really need some help....


i know most of you are gonna say it needs a tune yes i understand but how come before i could drive it perfectly but know it wants to die after it gets to operating temp


someone help me before i kill myself
Old 10-14-2009, 01:30 AM
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anyone
Old 10-14-2009, 01:57 AM
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Did u upgrade the injectors at all???? Dying out when you stop could be a vac. leak or the untuned cam!
Old 10-14-2009, 02:04 AM
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there are way to many possibilities to guess with the info given. Start off with the one problem you know exists....Get a tune, and go from there.
Old 10-14-2009, 07:49 AM
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Any SES light? You need to get the PCM scanned to see what the 02's are doing. Not worth flying blind and just throwing parts at an unknown problem.



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