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SES light and oil pressure gauge spike

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Old Aug 12, 2009 | 07:51 PM
  #1  
mechanic1992's Avatar
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From: Portland, OR
Car: 1987 IROC-Z
Engine: 305 TPI
Transmission: 700r4
SES light and oil pressure gauge spike

so the SES light in my 87 IROC will come on and my oil pressure guage will spike but nothing happens to the car, everything seems fine and it only comes on occasionally. would my gauge just be malfunctioning?
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Old Aug 12, 2009 | 09:00 PM
  #2  
jv9999's Avatar
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From: MA
Car: '87 IROC/'68 SS
Engine: 5.7L/350
Transmission: 700R4/Muncie 4-spd
Axle/Gears: 3.27 9 bolt / 3.31 12 bolt
Re: SES light and oil pressure gauge spike

It could be your voltage that is spiking. What code is getting stored in the ECM?
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Old Aug 13, 2009 | 12:31 AM
  #3  
mechanic1992's Avatar
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From: Portland, OR
Car: 1987 IROC-Z
Engine: 305 TPI
Transmission: 700r4
Re: SES light and oil pressure gauge spike

Im in alaska right now and my dad was driving the car when he was there and thats what he said it was doing and so i was gonna take a look at it when i got back down there, but i do not know what the codes are that are getting stored. I forget but how can i get OBD1 chevys to flash their trouble codes?
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Old Aug 13, 2009 | 12:45 AM
  #4  
Chevy8588's Avatar
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From: La Grange Park, IL
Car: 1987 Iroc Z28/ 1982 Z28
Engine: 355 TPI IP/ 305 CFI
Transmission: T-56/ 300C
Axle/Gears: 3.42 Open/ 3.73 Posi
Re: SES light and oil pressure gauge spike

jump pins a+b on the ALDL
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Old Aug 13, 2009 | 01:20 AM
  #5  
mechanic1992's Avatar
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From: Portland, OR
Car: 1987 IROC-Z
Engine: 305 TPI
Transmission: 700r4
Re: SES light and oil pressure gauge spike

ill prob feel stupid when you tell me but im not familiar with the acronym ALDL...
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Old Aug 13, 2009 | 01:47 AM
  #6  
Chevy8588's Avatar
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From: La Grange Park, IL
Car: 1987 Iroc Z28/ 1982 Z28
Engine: 355 TPI IP/ 305 CFI
Transmission: T-56/ 300C
Axle/Gears: 3.42 Open/ 3.73 Posi
Re: SES light and oil pressure gauge spike

Assembly line Diagnostic link, that little connector to the left of your center console under the dash
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Old Aug 14, 2009 | 01:09 AM
  #7  
mechanic1992's Avatar
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From: Portland, OR
Car: 1987 IROC-Z
Engine: 305 TPI
Transmission: 700r4
Re: SES light and oil pressure gauge spike

oh ok, ill have to do that when i get back down to the car, then look for the trouble codes sheet. thanks guys
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