I have had my 1996 S10 for a few years now and ever time it
gets cold in the midwest i have a problem with the IAT sensor.
Its fine when its warm, only when its below 40 degrees.
(OBDII codes pop)
Sensor has been changed. Head was off and harnesses re grounded.
I am assuming its a bad solder joint or such in the computer, but i
would hate to risk soldering the computer module to try to fix it while
its still running. And trying to find a replacement computer for a 96
2.2 wont be cheap either