Which sensors are these?
07-27-2017, 05:27 PM
#1
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Car: 1991 Trans Am GTA
Engine: L98(5.7 L TPI)
Transmission: 700r4(A4)
Axle/Gears: G80 RPO, 3:23s, Auburn Racer's Diff
Which sensors are these?
While my L98 is out of my 1991 trans am, I would like to replace the sensors that will be difficult to reach once it's reinstalled. On the lower side of the motor, there appear to be four sensors: 2 temp sensors, a knock sensor, and an oil switch/sensor. Is this correct? Are there any sensors I'm missing?
07-27-2017, 10:03 PM
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Car: 1991 Trans Am GTA
Engine: L98(5.7 L TPI)
Transmission: 700r4(A4)
Axle/Gears: G80 RPO, 3:23s, Auburn Racer's Diff
Re: Which sensors are these?
Map = mass air, correct? CTS = coolant temp sensor. What's IAT? Is there a diagram of where all the different sensors go?
07-27-2017, 11:00 PM
#4
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Re: Which sensors are these?
IAT=intake air temperature. Underside of upper plenum close to fuel pressure regulator on tpi cars. I believe I read some years have them in the air filter duct or maybe folks modify and move them there. I'm not educated on tbi location.
if you have a 91 it's map (speed density). 
