MAT Sensor Location, 1986 305 4-bbl Auto Trans
Thread Starter
Junior Member
Joined: Oct 2011
Posts: 28
Likes: 0
From: Southern, Cali
Car: 1986 Trans AM
Engine: LG4-305-Edelbrock Intake/Q-Jet Carb
Transmission: Automatic
MAT Sensor Location, 1986 305 4-bbl Auto Trans
Greetings,
Just had a new Edelbrock 3701 Intake Manifold installed and I am now getting Trouble Code 23. MAT Sensor (Low Temp).
My suspicion is that the MAT sensor is supposed to be mounted on the intake manifold itself and either the Edelbrock intake doesn't support it, my Mechanic didn't hook it up or the sensor is bad.
Please let me know which is right, what it is supposed to look like, where it should be attached and the implications if I never hook it up?
Please include a picture or diagram if possible
Thanks,
Big Ed
Just had a new Edelbrock 3701 Intake Manifold installed and I am now getting Trouble Code 23. MAT Sensor (Low Temp).
My suspicion is that the MAT sensor is supposed to be mounted on the intake manifold itself and either the Edelbrock intake doesn't support it, my Mechanic didn't hook it up or the sensor is bad.
Please let me know which is right, what it is supposed to look like, where it should be attached and the implications if I never hook it up?
Please include a picture or diagram if possible
Thanks,
Big Ed
Last edited by eca1987; Jan 30, 2012 at 02:43 AM. Reason: Spelling Error
Joined: Dec 2005
Posts: 4,796
Likes: 16
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: MAT Sensor Location, 1986 305 4-bbl Auto Trans
Greetings,
Just had a new Edelbrock 3701 Intake Manifold installed and I am now getting Trouble Code 23. MAT Sensor (Low Temp).
My suspicion is that the MAT sensor is supposed to be mounted on the intake manifold itself and either the Edelbrock intake doesn't support it, my Mechanic didn't hook it up or the sensor is bad.
Please let me know which is right, what it is supposed to look like, where it should be attached and the implications if I never hook it up?
Please include a picture or diagram if possible
Thanks,
Big Ed
Just had a new Edelbrock 3701 Intake Manifold installed and I am now getting Trouble Code 23. MAT Sensor (Low Temp).
My suspicion is that the MAT sensor is supposed to be mounted on the intake manifold itself and either the Edelbrock intake doesn't support it, my Mechanic didn't hook it up or the sensor is bad.
Please let me know which is right, what it is supposed to look like, where it should be attached and the implications if I never hook it up?
Please include a picture or diagram if possible
Thanks,
Big Ed
Joined: Mar 2000
Posts: 43,187
Likes: 46
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
https://www.thirdgen.org/service-eng...ht-error-codes
For a carb'd car, code 23 is TPS. Make sure it's plugged in, the harness isn't pinched under something, etc.
For a carb'd car, code 23 is TPS. Make sure it's plugged in, the harness isn't pinched under something, etc.
Thread Starter
Junior Member
Joined: Oct 2011
Posts: 28
Likes: 0
From: Southern, Cali
Car: 1986 Trans AM
Engine: LG4-305-Edelbrock Intake/Q-Jet Carb
Transmission: Automatic
Re: MAT Sensor Location, 1986 305 4-bbl Auto Trans
Pardon my ingnorance, but what is a TPS and where does it plug in? Where would I look for it? What does it look like?
Thanks for your help,
Bi Ed.
Thanks for your help,
Bi Ed.
Joined: Mar 2000
Posts: 43,187
Likes: 46
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Throttle Position Sensor. White plug on the front driver side corner of the carb.
In the diagram https://www.thirdgen.org/forums/carb...e-rebuild.html , #71.
In the diagram https://www.thirdgen.org/forums/carb...e-rebuild.html , #71.
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