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New 92, power supply issue

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Old Aug 5, 2018 | 04:14 PM
  #1  
draco's Avatar
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Joined: May 2006
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From: Parkersburg WV
Car: 1992 Camaro RS 25th Anni.
Engine: 5.0l TBI
Transmission: 700R4 Automatic
Axle/Gears: 3.73 Gov lock
New 92, power supply issue

Picked up a 92 RS, 305tbi.

Has a no crank issue, working on diag for starter circuit now. But before I climb down a rabbit hole, i need to know proper operation of dash lights. I have a good running 91 v6 to compare. At key on it shows the SES, INFL REST, seatbelt and security lights.

The 92 just shows the INFL REST and seatbelt lights at key on. Fuel pump does not prime. Battery volt gauge climbs to about 13v, oil pressure gauge drops below 0 and there is no crank. Other features function such as wipers, signals, lights. There is no radio in the car and the blower motor doesn't work but that may be a separate issue.

This sort of reminds me of a VATS failure but I thought the security light stayed on during that. It's been a few years lol.

More info, when I turn the key to "crank", the temp gauge climbs like my 91, showing that the car is seeing a start signal. I believe my VATS module has failed, and that's why the security light does not come on. I'm going to try and bypass the starter enable relay in the morning and see if I can get a crank. Still does not explain the fuel pump not priming but that may be another issue as well.

Last edited by draco; Aug 5, 2018 at 09:38 PM.
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Old Aug 6, 2018 | 10:17 AM
  #2  
draco's Avatar
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Joined: May 2006
Posts: 418
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From: Parkersburg WV
Car: 1992 Camaro RS 25th Anni.
Engine: 5.0l TBI
Transmission: 700R4 Automatic
Axle/Gears: 3.73 Gov lock
Re: New 92, power supply issue

Ok, I have bypassed the starter enable relay and the car now will crank. I still do not hear the fuel pump. Almost there!
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Old Aug 6, 2018 | 10:22 PM
  #3  
draco's Avatar
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Joined: May 2006
Posts: 418
Likes: 1
From: Parkersburg WV
Car: 1992 Camaro RS 25th Anni.
Engine: 5.0l TBI
Transmission: 700R4 Automatic
Axle/Gears: 3.73 Gov lock
Re: New 92, power supply issue

Mods please close this thread. Reposted in Tech/General engine and I am resolving the issue there.
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