Re: DML Digest V4 #658 [IAT]

From: Bob Tom (tigers@bserv.com)
Date: Thu Jun 17 1999 - 15:17:50 EDT


On Thu, 17 Jun 1999 16:29:37 GMT, Russ S. wrote:
>I've been playing around with my new toy - Easim diagnostics software
>program that plugs into the ECM port -

Tell me more about this new toy. I've been looking around for quite
a while for something like this. I was wondering about the SunPro
Scanner with the OBD-II cartridge. Is there a web site that I can
go to to see how it operates, what its capabilities are, what's its
cost and who sells it?

>...it shows my IAT to be 61 degrees F with a 15k ohm resistor in place.
>If I plug up the IAT harness, it starts off at ambient (~ 80 F), but
>rises with the increase in engine operating temp to a max of ~ 15 F
>lower than coolant temp. My 180 F thermostat actually runs around 185 F,
>you can see the temp rise past 190 F, then after the t'stat opens,
>the temp drops back to ~ 185 F. I'm planning on using a higher resistor
>to make the engine see ~ 30 F and see what happens...

Looking forward to hearing the results. I have a bit of time after
this Sat.'s Ontario Mopar Nationals and hope to begin experimenting
with both the IAT and H2O temp. sensors. Sure would be an inexpensive
trick for a tenth of a sec. gain.

Bob
Burlington, Ontario

'97 CC Sport, 5.2L, 3.55, auto., 4x2



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