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
Any suggestions?
Bob
maxwedge - 16 Nov 2006 00:44 GMT
Bob, if you scan it what input readings do you get, when cold should be
equal to air temp, also you could check the resistance of the wires
from the connector to the pcm, see if there is a problem there.
Autozone.com/repairinfo should have a wiring diagram for the connector
at the pcm.

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maxwedge
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Woody - 16 Nov 2006 15:20 GMT
And the OBDII code is?
>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.
[quoted text clipped - 17 lines]
> ----= East and West-Coast Server Farms - Total Privacy via Encryption
> =----
JM - 16 Nov 2006 21:26 GMT
Maybe the coolant temp sensor is out of spec at the lower temps and the ECU
blames the IAT sensor when the two aren't in sync?
>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.
[quoted text clipped - 6 lines]
> its still running. And trying to find a replacement computer for a 96
> 2.2 wont be cheap either
sdlomi2 - 20 Nov 2006 03:13 GMT
>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.
[quoted text clipped - 10 lines]
>
> Bob
Hey, Bob. Check your email; just sent you diagram of wiring at your
computer for '96 with 2.2. HTH, s
Bob Urz - 20 Nov 2006 05:06 GMT
>>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.
[quoted text clipped - 13 lines]
> Hey, Bob. Check your email; just sent you diagram of wiring at your
> computer for '96 with 2.2. HTH, s
Thanks, but you might want to send it again if you could. I am afraid my
spam filters got it before I did. The hazards of using your real addy
in usenet is 200 spams + a day in the in box.
Bob
sdlomi2 - 20 Nov 2006 10:52 GMT
>>>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.
[quoted text clipped - 25 lines]
> ----= East and West-Coast Server Farms - Total Privacy via Encryption
> =----
Check your mail! s