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Service Engine Soon Light

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Old Feb 5, 2011 | 01:02 PM
  #1  
mike23109's Avatar
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Service Engine Soon Light

I've got a 1992 Z28 with a 350. We just recently rebuilt the engine, after the car was sitting for about five years. I've noticed that when I drive on the freeway the "Service Engine Soon" light comes on. When we turn off the engine, it resets. The light does not come on when driving around town. Any suggestions on where to begin to look?

Thanks
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Old Feb 5, 2011 | 06:05 PM
  #2  
watajob's Avatar
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From: Location, Location!
Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: Service Engine Soon Light

Pull the code.
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Old Feb 5, 2011 | 06:10 PM
  #3  
camaronewbie's Avatar
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Joined: Sep 2002
Posts: 9,192
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From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: Service Engine Soon Light

Grab a paperclip and read:

https://www.thirdgen.org/service-eng...ht-error-codes
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