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

at a loss

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Old 06-28-2011, 03:59 PM
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I am at a loss.I replaced optispark & fuel pump.Car still dies going down the road.It will start & idle.It's a 1995 z28 350
Old 06-28-2011, 04:00 PM
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please help
Old 06-28-2011, 04:14 PM
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I don't mess with LT1's but you may want to post in the Forum specific to LT1's and give more details on what codes it's giving, etc
Old 06-28-2011, 05:59 PM
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Just a thought cause I went thru a similiar gremlin....try the icm
Old 06-28-2011, 06:13 PM
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Originally Posted by spcearle
Just a thought cause I went thru a similiar gremlin....try the icm
If you change every part in the car you'll get it sooner or later. Or you can start testing and find out what's happening and not throw parts at it. Just a thought....

Al 95 Z28
Old 06-28-2011, 07:05 PM
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Get the ICM tested at autozone. Get them to test it multiple times. Test the coil using Shbox's method. Test fuel pressure WHEN THE CAR IT ACTING UP.
Old 06-28-2011, 07:32 PM
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Does it reach operating temperature then dies? How long until it re-starts?

Silly question here but that's what I usually ask: Have you replaced the fuel filter?




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