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

Car problems

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Old 06-23-2010, 04:14 PM
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When you first crank it up it will idle fine. After it runs for alitle it will start going died. It will crank back up but you can smell fuel. Its also has a miss when driving and feels like the powers down. Its got new plugs, wires, opti and o2s. Anybody got any ideas.
Old 06-23-2010, 04:55 PM
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if it were mine, i would start by putting a fuel pressure gauge at the fuel rail. if the pressure stays consistant, you could eliminate the fuel system up to the point of the injectors.
Old 06-23-2010, 06:30 PM
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injectors could be sticking.
Old 06-23-2010, 06:54 PM
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Unplug the maf n see what happens mane
Old 06-23-2010, 08:47 PM
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it goes died as soon as i unplug it
Old 06-23-2010, 08:47 PM
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the injectors are brand new
Old 06-23-2010, 09:31 PM
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how old is the coil and icm? After my opti install, i cranked mine up and it idled for 10 minutes and died. would not restart. The coil and opti tested good according to shbox's website. the forum suggested I change the coil and icm. It fired right up after i changed them.
Old 06-23-2010, 09:43 PM
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icm is stock. coil bout year old. its a msd coil. It starts back up tho.
Old 06-24-2010, 09:44 AM
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mine would restart too...at a couple of different times. then the third time it would not restart. i replaced the opti. after that, it idled for 10 minutes, died and would not restart. runs fine now after replacing an unknown vintage msd coil and unknown vintage icm.
Old 06-24-2010, 10:11 AM
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I may try that then. any body else got any ideas
Old 06-24-2010, 01:23 PM
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try the icm first since its possible it's 16+ yrs old...
Old 06-24-2010, 01:30 PM
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Originally Posted by brettmc
try the icm first since its possible it's 16+ yrs old...
Thats my thought also.
Old 06-24-2010, 04:03 PM
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Hope you get things figured out. I idolized your car for the longest time man!
Old 06-24-2010, 06:16 PM
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Originally Posted by marc97taws6
Hope you get things figured out. I idolized your car for the longest time man!
Thanks bro. Im trying like hell to. I took it to the track and it went 7.70 with a 1.83 60ft and not shifting into 3rd gear. It had that miss also. Im trying get the new susp dialed in.;



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