What are gauges run off of in 91 camaro?
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Junior Member
Joined: Nov 2015
Posts: 21
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Car: 91 Camaro RS
Engine: 350 crate engine 360ish HP
Transmission: T5 5 speed manual
Axle/Gears: 3.42 10 bolt POSI
What are gauges run off of in 91 camaro?
I plan on going from 305 tbi t5 to carb 350 t56. It is my understanding that all the gauges run off of the ECM. What will need to be done to make them work? Or at the very least, the speedometer.
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Joined: Jan 2006
Posts: 3,341
Likes: 10
From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Misunderstanding Commanding
NONE of the gages are controlled by the ECM.
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8 Wheels Corner Better Than 4, If Youre On The Outside You Have Fair Warning
Happy Racing !
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
8 Wheels Corner Better Than 4, If Youre On The Outside You Have Fair Warning
Thread Starter
Junior Member
Joined: Nov 2015
Posts: 21
Likes: 0
Car: 91 Camaro RS
Engine: 350 crate engine 360ish HP
Transmission: T5 5 speed manual
Axle/Gears: 3.42 10 bolt POSI
Re: What are gauges run off of in 91 camaro?
What does the Speedometer run off of? It was my understanding that that did, but the tach ran off the distributor.
Junior Member
Joined: Dec 2014
Posts: 20
Likes: 0
Car: 91 Bird
Engine: 350 carb
Transmission: T56
Axle/Gears: Strange 12 bolt, 4.11
Re: What are gauges run off of in 91 camaro?
Possible, some years the vss was part of the ecm I believe. I have a 91 firebird (was 305 tbi) it had a seperate vss. Only wire that went to the ecm was the high speed cut off. Dakota digital box will take care of it if needed. The other gauges will work, they are on the drivers side harness. You will lose the fan control. The computer uses the temp sensor on the passenger side head for that. There are stand alone sensors to take over that responsibility.
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