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

97 Z28 stalls when it warms up

Old Jul 29, 2022 | 07:48 PM
  #1  
Paaco1981's Avatar
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97 Z28 stalls when it warms up

I'm trying to figure out what's going on with my car. It runs good cold. I drove it tonight about 4 miles and it started missing real bad and stalled out. Would not crank back up. Started a couple times but immediately shut back off. After sitting for an hour, I was able to get back home. On the drive back home I got a few pops through the exhaust.

Scanned for codes when i got home and have these 3 listed.
P0372, P1371, P0335.

Anyone have any ideas where I need to start?
Old Jul 29, 2022 | 09:21 PM
  #2  
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Re: 97 Z28 stalls when it warms up

Unfortunately, the P0372 and the P1371 both point to the optispark. The P0335 is crankshaft position sensor, which shouldn't have anything to do with the problem you're having.
Old Jul 29, 2022 | 09:26 PM
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Re: 97 Z28 stalls when it warms up

Thanks for the reply moparman, I was afraid of that being the issue. If I take on the job of replacing the opti, is there anything else I should be replacing while I have it all apart?

Also, is there anything else that could cause those codes and my situation or is it pretty much gonna be the opti for sure?
Old Jul 30, 2022 | 07:21 AM
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Re: 97 Z28 stalls when it warms up

I'm no expert on the optispark. Maybe Injuneer or shoebox will see this and give some better info on what you need to be careful of when replacing.
Old Jul 31, 2022 | 06:11 AM
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Re: 97 Z28 stalls when it warms up

No problem Mopar, I appreciate the help.
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