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

Possible Opti problems.

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Old 12-13-2010, 01:54 PM
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Default Possible Opti problems.
A few weeks ago my car started sputtering and eventually dying while I was driving, normally it would fire right back up. But now it's nearly impossible to start when warm and wont go above 3500rpm without backfiring and jumping and missing. Any ideas? I'm leaning toward the Opti.
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Old 12-13-2010, 01:57 PM
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Not necessarily always the opti; Fuel pressure/pump/FPR? Coil? ICM? Plugs/wires?
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Old 12-13-2010, 02:02 PM
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All wires are good, coil is still good, haven't checked the ICM yet or the fuel pump. The alternator is going out, would that cause any of it?
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Old 12-13-2010, 02:19 PM
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Did the SES light come on?
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Old 12-13-2010, 02:24 PM
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Yea the SES light is on, the weird thing is, is that when it misses the light goes off for like 3 seconds, then comes back on.
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Old 12-13-2010, 02:47 PM
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Originally Posted by MichaelWade
The alternator is going out, would that cause any of it?
repair/replace that 1st..have the battery checked out as well(dead cell,etc.)
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Old 12-13-2010, 11:54 PM
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Originally Posted by MichaelWade
Yea the SES light is on, the weird thing is, is that when it misses the light goes off for like 3 seconds, then comes back on.
ses light flashes when you have a misfire
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