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

Lt1 3 new optis new plugs wires coil ect sensor map still missing

Old 05-18-2019, 04:36 PM
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Lt1 3 new optis new plugs wires coil ect sensor map still missing

It starts sometimes and runs smooth for like 15 seconds n starts missing after that sometimes it misses from the start. Why does it run smooth for the 15 seconds sometimes?
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Old 05-18-2019, 07:39 PM
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Re: Lt1 3 new optis new plugs wires coil ect sensor map still missing

Year of vehicle? Any engine mods? And it was doing this before and after all the parts you replaced?

Are there times when it won’t start at all? Aside from misfire, are you able to drive it? Have you scanned for codes, checked fuel pressure?
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Old 06-18-2019, 11:09 AM
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Re: Lt1 3 new optis new plugs wires coil ect sensor map still missing

It always starts
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Old 06-18-2019, 11:16 AM
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Re: Lt1 3 new optis new plugs wires coil ect sensor map still missing

Originally Posted by Injuneer View Post
Year of vehicle? Any engine mods? And it was doing this before and after all the parts you replaced?

Are there times when it won’t start at all? Aside from misfire, are you able to drive it? Have you scanned for codes, checked fuel pressure?

How about answering the rest of the questions.
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