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

Anyone work at car shop or dealership/service or experience this ??? LT4

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Old 04-30-2009, 12:35 AM
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Default Anyone work at car shop or dealership/service or experience this ??? LT4

Ok check this out went to the track with Check engine light it went from 12.8 @ 110.0 on street tires. To 14.0 @ 103.85 Make a long story short there is a burnt wire, from the engine back to 02 sensors theres nothing burnt
theres 4 codes i know 2 of them

p0100
p1657
? -connector to that goes into the elbow.
? dont know ?

blows fuse on acceleration, once out of 1st gear i was told its speed density.

It burns 20 amp fuse in engine " engine sensor fuse, does maf , 02, heaters, skip shift, rev lock out. They installed 25 amp circuit breaker

" STILL ISSUES HASNT CHANGED OTHER THEN ITS THROWING 1 CODE :lol rather then 4 so far p0100


"""""" Anyone here gone threw this and if so what did it turn out to be and..... anyone who works at a CAR SHOP, DEALER/SERVICE have any ideas ????

Last edited by Tapout97; 04-30-2009 at 12:36 AM. Reason: ffff
Old 04-30-2009, 02:37 AM
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Do you mean a plug wire is burnt, or do you mean the harness on the passenger side onf the motor going down by the headers is burnt? That harness burnt on hy headers, burnt out 4 wires, threw a code for my maf. Repaired it and all of the problems went away. The car would bog and was running extremely righ with the burnt wires.
Old 04-30-2009, 06:43 AM
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I also had the bundle of wires that runs from the PCM down the passangers side fender well to the O2's burn. The clip that held the loom of wires in place broke and allowed the wires to rest aginst the long tubes. It burn't the O2wire and the crank position wire which caused a no-start. I was blowing engine fuses and the car ran rough. Fixed the burn't wires and made sure they were routed in a manner where they couldn't not get burn't again and the car runs fine.
Old 04-30-2009, 10:54 AM
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This is what i can tell you, Im not a mechanic lol but the day i went to the track 2 weekends ago my car has run 12.7- 12.8 constint on shitty *** street tires ........ in Arizona even in 90 degree wether trapping 109-110.3 the night i went i ran the car 3 times 14.4 @ 101 LOL 14.2 @ 102 and 14.0 at 103.79 i did lower the air pressure all 3 times but thats more then a full second and over 7-9 mph trap speed which is huge...

Took it to a shop called car clinic all that they did was ran a dignostics " sorry spinning off pain killers spell check bad HAH ! " And they pulled 4 codes and said 3 things

1. theres a burnt wire or wires " Somewhere located in the engine" god knows where

2. it threw 4 codes

3. after 1st gear the car was put into speed density

keep in mind even in an m6 with 3:73 current i ran all 3 times 60 foot times 2.4 <--- total ****

I was told to take it to dealership the top 3 dealerships in phx 1 is brown and brown cheverlot..... ive been told by another shop that they simple have more tools and resourses there..... i was told since my friend @ top gear called them and they have to run a dignostics $90-100 bucks.....******* stupid if you ask me simple for the fact i had one done but i understand then they can figure out the problem from there.....

" does this sound like familur to anyone or experience this " sounds like both you guys have gone threw this in a way if you read my original post youll see im throwing Not 1 but 4 codes.

p.s since the was picked up it still throws check engine light p0100 , bogs from a dead start and i can tell after 1'st its a 14 second car

Last edited by Tapout97; 04-30-2009 at 10:55 AM. Reason: dafaf



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