been havin this problem for years now. if i adust tps it goes away for a day or two then acts up again. tried re doing the splice in the ground wire, cleaning the c101 new tps and iac. added battery ground. i tried to run a direct ground spliced into the tps ground wire but it just makes the idle race like at2000rpm, wont go down no matter what, i read that guys have done it with success so i dont know whats up with it. runs good other than that tho. does it worse with ac on.

88 5speed 90s motor, all sensors reading correct through snap on scanner.

 

Are you adjusting the TPS correctly? Engine side per the instructions at www.cruiser54.com?

 

Yes. wierd it will run fine for a few trips after adjusting then go back to acting up. I thought tps was bad, but no. its not the throttle body either, i just installed a bored one from the guy on your site. engine does blow by alot but since it runs good after adjusting i think its something electrical. Do you have any idea why running a new ground for the tps would make it freak out? couse i dont understand it. unless the ecm supplies ground.

 

Try unplugging the tps and drive it, I had similar issues and I ran with out a tps for a week until I bought one and adjusted it to cruisers tips...
The moment the tps gets any type of liquid that hits it, it'll be a crap shoot after a couple days....

Also, have you deleted connecter c101?

 

no i havnt deleted it, i guess ive been putting that off for a while. but i did clean it. I would think that it would run like total crap with the tps umplugged. i ruled it out by replacing it.

 

Shocking that it ran actually great with out it...