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Topic: Car starts and runs for 3-6 seconds and just shuts off??

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Car starts and runs for 3-6 seconds and just shuts off?? (1/5)
 11/5/21 2:38pm
OneBad96LT1
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Vette(s):
1996 LT1


Joined: 11/5/2021
Posts: 1

1996 Base Coupe, new battery, fuel pressure regulator.  Hello all, I had an issue with a $1,600 Corvette I just bought the owner told me it would start up and shut off after three to six seconds. It does do this still. I did the fuel pressure which is good plenty of spark everything seems normal it starts up perfectly fine idles beautiful and then shuts off after three to five seconds. Anyone have any ideas? Thank you in advance.

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Re: Car starts and runs for 3-6 seconds and just shuts off?? (2/5)
 11/5/21 5:07pm
manchester
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Equinunk, PA - USA

Vette(s):
1993 LT1 convertible triple black 4L60 2003 Zo6 Electron/Black 6 sp


Joined: 11/12/2017
Posts: 23

Greetings, Pick up filter in the tank?

Re: Car starts and runs for 3-6 seconds and just shuts off?? (3/5)
 11/5/21 8:12pm
Adams' Apple
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Duncanville, TX - USA

Vette(s):
1985 Coupe-L98/Auto,Bright Red/Carmine. 1974 Coupe-L48/4speed, Medium Red Metallic/Black Deluxe.


Joined: 3/18/2009
Posts: 2183

I'd be suspicious of the factory antitheft system. Have you tried getting any diagnostic codes out of any of the systems?



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Re: Car starts and runs for 3-6 seconds and just shuts off?? (4/5)
 11/6/21 7:07am
Black Shark
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Atchafalaya Basin, LA - USA

Vette(s):
Black 1979 L-82 Black 1996 LT1 Black 1999 Coupe


Joined: 3/20/2009
Posts: 586

Adams' Apple said:

I'd be suspicious of the factory antitheft system. Have you tried getting any diagnostic codes out of any of the systems?


That....or....

 I would check for spark when the car will not start.

Look at ICM (ignition control module), and then head to the opti-spark.

Re: Car starts and runs for 3-6 seconds and just shuts off?? (5/5)
 11/11/21 7:22pm
396c4
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Joined: 12/7/2011
Posts: 218

Water in the Opti-Spark. Mine would go a little farther but did same. I posted pictures quite awhile ago but it was rusted inside. Problem is the pain to get there. The cooling vent was leaking








|UPDATED|11/11/2021 5:22:42 PM (AZT)|/UPDATED|


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