If you're testing across the idle switch and not the pot, you should be under 3 ohms or so. Try jumping it, turning the a/c on and seeing if there is any difference.
 

Bill Cardell
TurboDog's Dad
Flyin' Miata
1-800-359-6967 (sales)
970-464-5600 (tech support)
www.flyinmiata.com
www.fmwestfield.com

 

From: miatapower-bounces@miatapower.net [mailto:miatapower-bounces@miatapower.net] On Behalf Of chris@wickfordharbor.com
Sent: Wednesday, July 28, 2010 8:45 PM
To: LSAPEX@aol.com
Cc: miatapower@miatapower.net
Subject: RE: 92 auto tps needed

was getting 39 ohms on the idle pins from the tps (which wouldnt buzz the continuity test on my multimeter).  thinking it should be zero, i decided to take les' advice, and go in

i removed the tps.  broke the 4 tabs. pried the stainless cover out. pried the rubber layer under that. then the white banjo rheostat card dropped out. i cleaned it.

tested, and 39 ohms!

there was no way to reassemble it except to epoxy the white banjo around the perimeter.

i think i can assume the tps idle condition is normal at 39 ohms and should now replace it, and then examine the IAS for functionality.






-------- Original Message --------
Subject: Re: 92 auto tps needed
From: LSAPEX@aol.com
Date: Wed, July 28, 2010 12:50 pm
To: chris@wickfordharbor.com
Cc: miatapower@miatapower.net

I'm not sure it's considered serviceable, but there is always a way. :)

Les.
www.apexautoeng.com

In a message dated 7/28/2010 3:28:02 P.M. Eastern Daylight Time,
chris@wickfordharbor.com writes:
thanks les


did not know it was serviceable. i will try that!


cp
-------- Original Message --------
Subject: Re: 92 auto tps needed
From: LSAPEX@aol.com
Date: Wed, July 28, 2010 12:14 pm
To: miatapower@miatapower.net

Pull the cover, check/clean the contacts?

Les.
www.apexautoeng.com

In a message dated 7/28/2010 2:35:06 P.M. Eastern Daylight Time,
chris@wickfordharbor.com writes:
hi all,


i'm certain no one will have this one.


4-pin tps throttle position sensor from a 92 auto


i am having low idle when the a/c kicks on and tested tps per bill's
advice.


no continuity on the IDL pin


manual trans cars have a 3 pin, so this one would be rare.


maybe someone has a 90-93 auto trans engine sitting complete?


chris


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