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 _______________________________________________ Miatapower mailing list Miatapower@miatapower.net http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower _______________________________________________ Miatapower mailing list Miatapower@miatapower.net http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower