Intake Air Temp Sensor

Bernie Benz b.m.benz at
Sun Jun 9 09:18:00 EDT 2002

Hi Derek,

what did you do to replace your air temp sensor,  Guess that I'm in the
market for one also.


Disconnect the sensor for awhile, such that the ECU will begain to
appreciate your sensor.  Don't baby it!

> From: "Derek Pulvino" <dbpulvino at>
> Date: Tue, 28 May 2002 13:21:41 -0700
> To: 200q20v at
> Subject: Intake Air Temp Sensor
> 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.
> Tried today to check resistance at both ends of the connections (sensor and
> ECU) when the check engine light was on, and again resistance was fine.
> Car is getting a max boost of 1.5 as per the dash gauge, but mileage does
> not seem to be suffering (overall average of around 20-21 and still seeing
> 26ish on freeway continuous).  Connections at the temp sensor do not appear
> frayed, and are still soldered/spot welded as per factory, and the spring
> tension at the ECU connector seemed fine as well.  Also can notice some very
> subtle surging on acceleration at a given throttle position, whether from
> timing or boost changes don't know.
> 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
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