what are these relays?
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From: carol stream
Car: 87 firebird formula
Engine: 305 tpi
Transmission: t5
Axle/Gears: 373:1
what are these relays?
theres 3 relays and i think the one one end for ign. but other three want to know one seys maf power on it and kills vehicle immediatly other two makes no diff connected or not trying to do a wire tuck on my 87 firebird 305 tpi t5
thanks
thanks
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From: Manassas VA
Car: 83 Trans Am
Engine: 350 Carb'd
Re: what are these relays?
Pretty sure the one on the left of the three vertical ones is your fuel pump relay. Id be curious to know what the other 3 are myself.
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From: Round Rock, TX
Car: 1988 Firbird formula 350
Engine: 5.7L TPI
Transmission: 700R4
Axle/Gears: 3.27 Nine Bolt
Re: what are these relays?
Those look like the fuel pump, MAF power, and MAF burn off relays if that's the drivers side firewall of a TPI 3rd gen.
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Junior Member
Joined: Oct 2010
Posts: 44
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From: carol stream
Car: 87 firebird formula
Engine: 305 tpi
Transmission: t5
Axle/Gears: 373:1
Re: what are these relays?
That's what I thought but the on seys maf power and other two are blank if one was fuel pump relay I wouldn't be able to un plug it runs and starts fine maf burn off would make sence
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
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From: GA
Car: 1986 IROC-Z28/1989 Firebird
Engine: 5.7L 1995 four bolt/roller cam
Transmission: 700R4
Axle/Gears: 3.73
Re: what are these relays?
The three relays are the Fuel Pump, MAF Burnoff and MAF Power Relay. On my 1986.
The MAF Power relay has five wires and one is red.
The Fuel Pump relay has five wires and one wire is Tan/white.
The MAF Burnoff relay has four wires and has a dark blue wire.
I can't stress this enough. RELAYS can still work, but not correctly.
Like the fuel pump relay, it will work, but, if it's going bad, it will not run the pump long enough and cause a starting problem. Low fuel pressure on the 2 second pulse.
Change all original relays, and you will not regret it.
The MAF Power relay has five wires and one is red.
The Fuel Pump relay has five wires and one wire is Tan/white.
The MAF Burnoff relay has four wires and has a dark blue wire.
I can't stress this enough. RELAYS can still work, but not correctly.
Like the fuel pump relay, it will work, but, if it's going bad, it will not run the pump long enough and cause a starting problem. Low fuel pressure on the 2 second pulse.
Change all original relays, and you will not regret it.
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