Intake Air Temp Sensor

Peter Schulz peschulz at
Tue May 28 17:37:57 EDT 2002


Remove the sensor from the intake manifold and you will probably find a
bunch of "gunk" on it.

Carefully clean it with a soft brush and some rubbing alcohol and reinstall.
(careful as this is a $100 dealer only part  ;^)

BTDT - and no more sporadic faults


At 01:21 PM 5/28/2002 -0700, you wrote:
>Hey all,
>Been getting a fault code for the above for some time now and hoping
>somebody might have some input.  Fault code comes back consistently after
>clearing the codes, however when checking resistance both at the sensor, and
>at the ECU harness end, resistance comes back within spec.  Notice the check
>engine light coming on intermitently while driving, and as the only fault
>code ever stored is for the temp sensor, I assume check engine light is
>illumnating when a fault is sensed.
>Does anybody know where the sensor attaches to a ground, or for that matter
>have any other suggestions?  On a different note, I'm also going to check
>for vacuum leaks this week.
>Derek P

Peter Schulz
1990 CQ
1991 200 20v TQW indigo mica
1991 200 20v TQW titanium grey
Chelmsford, MA USA
peschulz at

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