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1986 IrocZ MAF burnoff relay issues

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Old Feb 27, 2022 | 01:01 PM
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From: NAVARRE, FLORIDA
Car: 79, 85, 87,91 TRANS AM'S
Engine: 455,305TPI,350TPI,350TPI
Transmission: MUNCIE, T-5, 700R4'S
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1986 IrocZ MAF burnoff relay issues

So I've searched for an hour or so and all I find are diagrams where the relay for the burn off has 4 wires, my relay has 5 wires A-E. A and D have power when the vehicle is running. E has power all time. B has ground all times. C has ignition power. Does this seem right? I thought the computer controls ground to come on right after the vehicle ignition is off. All testing during closed loop only have code 36.

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Old Feb 27, 2022 | 01:13 PM
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Re: 1986 IrocZ MAF burnoff relay issues

https://www.thirdgen.org/forums/tech...code-36-a.html
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Old Feb 27, 2022 | 01:47 PM
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From: NAVARRE, FLORIDA
Car: 79, 85, 87,91 TRANS AM'S
Engine: 455,305TPI,350TPI,350TPI
Transmission: MUNCIE, T-5, 700R4'S
Axle/Gears: YEP
Re: 1986 IrocZ MAF burnoff relay issues

Originally Posted by Tuned Performance
unfortunately those diagrams don't mach up to what I have.
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Old Feb 27, 2022 | 01:49 PM
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 1986 IrocZ MAF burnoff relay issues

86-89 1227165 should be the same might have different wire colors you might consult your fsm.
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Old Feb 27, 2022 | 03:51 PM
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From: NAVARRE, FLORIDA
Car: 79, 85, 87,91 TRANS AM'S
Engine: 455,305TPI,350TPI,350TPI
Transmission: MUNCIE, T-5, 700R4'S
Axle/Gears: YEP
Re: 1986 IrocZ MAF burnoff relay issues

So the po must have moved the wiring harness around for the burn off and the fuel pump. I tested the burn off per the troubleshooting chart and everything was working correctly. Looks like I need a new computer to fix this.
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Old Feb 27, 2022 | 04:01 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 1986 IrocZ MAF burnoff relay issues

https://www.ebay.com/itm/1987-1991-C...-127632-2357-0


just use your chip
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Old Feb 28, 2022 | 02:56 PM
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From: NAVARRE, FLORIDA
Car: 79, 85, 87,91 TRANS AM'S
Engine: 455,305TPI,350TPI,350TPI
Transmission: MUNCIE, T-5, 700R4'S
Axle/Gears: YEP
Re: 1986 IrocZ MAF burnoff relay issues

Originally Posted by Tuned Performance
cool, thanks I just ordered it. I'll let you know how it goes.
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Old Feb 28, 2022 | 03:00 PM
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 1986 IrocZ MAF burnoff relay issues

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Old Mar 5, 2022 | 05:54 PM
  #9  
NORTHSLIDER's Avatar
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From: NAVARRE, FLORIDA
Car: 79, 85, 87,91 TRANS AM'S
Engine: 455,305TPI,350TPI,350TPI
Transmission: MUNCIE, T-5, 700R4'S
Axle/Gears: YEP
Re: 1986 IrocZ MAF burnoff relay issues

Originally Posted by Tuned Performance
well,.the ecu worked as you said it would, but my code 36 still exists. Is the code specific to the burn off circuit? Or should I be looking in other areas also.
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