V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

burn off relay?

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Old 02-21-2022, 05:11 PM
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Car: 1990 firebird,1989 Iroc z,1986 fire
Engine: 3.1lt,5.7tpi,3.1mpfi
Transmission: auto,auto
Axle/Gears: 273?277
burn off relay?

Does the 85 2.8 have a maf burn off relay like the 5.0 tpi?
Old 02-21-2022, 05:41 PM
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: burn off relay?

https://www.thirdgen.org/forums/v6/7...2-8l-have.html
Old 02-21-2022, 05:42 PM
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Join Date: Dec 2004
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Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: burn off relay?

Btw the 85 tpi uses a module mounted on the ecm
Old 02-21-2022, 09:28 PM
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Join Date: Mar 2010
Location: tn.
Posts: 975
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Car: 1990 firebird,1989 Iroc z,1986 fire
Engine: 3.1lt,5.7tpi,3.1mpfi
Transmission: auto,auto
Axle/Gears: 273?277
Re: burn off relay?

Thanks again tune! I did find the pages in the service manual for both f and s engine and found out how they differ in the 85 model year. I'm just going to put a 3.1 block I have back in place of the sludged up 2.8 for now. Thinking down the road for this body. Maybe a 3.4 or 5.7tpi. I may get crazy and try a ls
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