tmajikman

Hey everyone, I read the codes on my car, an 87 GT. here are the koer code

First code is 21: Cooling temp. sensor out of specified range or ECT out of range...... Could this be due to an aftermarket guage?

Second code is 44: Thermactor air system fault / right side..... Is this because of the smog pump?

Third code is 94: Thermactor air system fault; transaxle switch solenoid fault (converter clutch), secondary air injection system inoperative (left side)

Thanks for any help.

mattdel

replace your ECT, its the sensor for the computer, not the gauge. its located to the left of your distributor, near the #1 injector.

tmajikman

Hey matt, that is for the temp reading correct, thanks.

mattdel

yah its the coolant temp reading for the computer, to adjust Air/fuel ratios, it has 2 wires. the sensor for the gauge is located to the right of the distributor, with a 1 wire hookup.

gspfunk

Do you still have your smog pump and stuff? If not, that's why you're getting the air pump codes. If you do, the equipment is not working properly.

mattdel

and yes, those other codes are air pump related codes.

tmajikman

I have a copper line running from my coolant sensor, the original wire is disconnected, should that matter, is so I think I may get a normal connector to hook that back up. lmk if you get a chance.

tmajikman

The air pump is noisy and ready to go boom I think. I need to try and find the smog delete belt route, and figure out what belt to use.

mattdel

thats not the right sensor. there are 2 different coolant sensors.
the one for your gauge has a 1 wire hookup, thats the one with the copper you are talking about.
the other one, the sensor that made that code, is located to the left of the distributor. its screwed into one of the metal lines running along the left side of your intake. it has 2 regular wires with a clip-on connector.

tmajikman

So that sensor is the ect, the sensor I need to replace. Thanks for the help again mattdel