IAT sensor

Brandon Rogers brogers at terrix.com
Wed Sep 5 12:52:03 EDT 2007

I have pulled back the boot - saw nothing suspicious.

I think I'm going to test continuity at the harness plug - once I figure
out which pins to test....

PS saw your post about the cam - crazy weird!  You should be able to dig
up a cam from somebody who replaced theirs with 7A....

-----Original Message-----
From: Phil and Judy Rose [mailto:pjrose at frontiernet.net] 
Sent: Wednesday, September 05, 2007 10:39 AM
To: Brandon Rogers
Cc: '200q20V mailing list'
Subject: RE: IAT sensor

At 10:08 AM -0600 9/5/07, Brandon Rogers wrote:
>anyone..anyone... Bueller.......Bueller.....
>-----Original Message-----
>From: Brandon Rogers [mailto:brogers at terrix.com]
>Sent: Tuesday, September 04, 2007 10:05 AM
>To: '200q20V mailing list'
>Subject: IAT sensor
>Guys - so my car is throwing a code - used my ProDiag and it said the 
>Intake Air Temp sensor has a sporadic short to ground.  The light 
>engine) comes and goes - mostly stays on and once while driving on the
>highway it was behaving oddly- boost surges and overall the motor felt
>weird - but mostly since then it has felt pretty much fine.
>So do you think I have worn out wire insulation somewhere or is this a 
>typical sign of a dying IAT sensor?

Have you pulled back the rubber boot on the IAT and had a look? It's 
supposed to be a "welded" connection, but sometimes you'll find a 
soldered DIY job--perhaps with a stray strand of ground(ed) wire 
causing the problem. The Bentley gives a test value for the IAT 
resistance, but naturally this requires measuring it when 
disconnected from the harness-- hence not so simple to do.


*  Phil & Judy Rose           Rochester, NY  *      
*        mailto:pjrose at frontiernet.net       *

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