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

1371 code??

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Old 05-18-2009, 06:51 AM
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Default 1371 code??

Started the car this morning headed to working and it fired right up!
Started to walk inside to let it warn up and it just died, went back to start it and nothing...?
Threw a 1371 code, I cleared it and when I turned the key over to start and threw code instantly...
Btw, yesterday I hit it around a corner, tires set loose, and it died... I coasted to a stop and it started back up..
Old 05-18-2009, 07:08 AM
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Well, you know what P1371 means...opti or opti harness.

P1371 Distributor Ignition (DI) low resolution circuit
Old 05-18-2009, 07:17 AM
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Damn Kris.. always breakin ****..
Old 05-18-2009, 07:40 AM
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Originally Posted by shbox
Well, you know what P1371 means...opti or opti harness.

P1371 Distributor Ignition (DI) low resolution circuit
Opti..? My code book says "ignition coil cylinder 1 early activation fault"
Old 05-18-2009, 12:57 PM
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Well I went home for lunch and jumped in my car and it started right up and died about 3 seconds later, then obviously just turns over with no start after that...
Old 05-18-2009, 01:01 PM
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Check the Opti or that wiring..could be the coil too.
Old 05-18-2009, 01:04 PM
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Did you recently spill water or coolant on the opti?

I would disconnect your opti harness on both ends and check for corrosion, moisture, breaks, anything...
If the harness looks in tact, you likely need a new opti.
Old 05-18-2009, 09:00 PM
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Ok.. Got home from work and wanted to test opti pigtail... Unplugged it, tested it with a multimeter on ohms.. It would count down them read 0.00... I took a pick and made sure all the prongs were not bent/flat..
I plugged it back in and it fired right up..? Took it to fuel station, killed it, fueled up and jumped back in, started fine and drove home.. Good so far..
I'm happy but a bit confused..
Old 05-19-2009, 12:45 AM
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Could have been a bad connection..
Old 05-19-2009, 06:53 AM
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Originally Posted by Green3spd
Opti..? My code book says "ignition coil cylinder 1 early activation fault"
Then you need to use a different book.

There is a link to correct f-body DTCs in my sig.



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