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

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Old Sep 30, 2009 | 01:00 AM
  #1  
bazzi's Avatar
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Help!

Ok here's the story, i go to the local street legals on friday night, i make on pass.... 12.9@ 114mph not great but i'll take it. My next pass is gonna be against my bro who just ran 11.5@124mph ..... great! So we go at her, he misses a shift, im catching up then the car just dies! you know when you hit the governer? thats what it felt like but i was only going like 60mph. Ok so i do on more pass and it would bog out and do the same thing but at 3500rpm in 1st and 2nd....3rd made it up to 5000rpms before it did it. naturally i was pissed so i went home and the car died on me 3 times on the highway, i could tell when it was about to die too, it would bog and stutter before the rpms would just drop... i would press the gas and nothing then it would just jump, like it was delayed. it tried one more time but i fought it and kepted the rpms up by mashing the gas but it barley stayed up when i mashed the gas. at idle it surged alot too, never did that before. the next day it had a code- DTC 34 MAP senser low - so i changed it. car seemed ok so i took it for a rip and let me tell you she ****ed off pretty good. Problem solved right? nope i turned the corner and a half a block down she died on me again. Rpms just died and i tried to give it gas so it wouldnt die but it was having nothing of it

what can it be? HELP!

383 stroker, 150 shot of nos, cam, heads....... everything lol.
Old Sep 30, 2009 | 07:00 AM
  #2  
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Have you checked your fuel pressure? The MAP code can come from the engine dying unexpectedly (like yours did). It does not always mean there was a MAP sensor problem. You likely replaced it needlessly.
Old Sep 30, 2009 | 09:34 PM
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bazzi's Avatar
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fuel pressure seems fine.... next time it dies on me i'll check

i really need a gauge in the car i only have one under the hood




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