Injector swap made my car worse
Supreme Member
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Injector swap made my car worse
In your last post, you said you were getting 2.56 volts? It sounds like the MAF sensor is bad. Just be sure of your powers and grounds according to the diagram. If they are as they should be and you're getting 1 volt signal revving the engine, the MAF is bad.
The MAF relay is activated by the fuel pump relay output so the MAF won't have power when the FP isn't running.
The MAF relay is activated by the fuel pump relay output so the MAF won't have power when the FP isn't running.
Senior Member
iTrader: (3)
Joined: Jan 2012
Posts: 877
Likes: 2
From: Clark NJ
Car: 1988 Pontiac Transam GTA Notchback
Engine: 2003 Chevy 5.3 Vortec (325 cu)
Transmission: 4L60E
Axle/Gears: 3.27
Re: Injector swap made my car worse
Huh, maybe that was my problem as well.
I wouldn't be surprised.
I wouldn't be surprised.
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