i have been having some trouble getting my car running proper this summer, i have done a compete tune up, checked the timing, and looked for any vacum leaks, alls good there, but when i went to check my TPS with a DMM i got a 1k ohm reading at rest but as i rolled through to WOT it went up smooth till the almost 5k ( around like 4985) and the went to overload when the metal peice on the TB lost contact with the TPS before i got to WOT. i have never messed with the tps but i have a pretty heavly ported TB and no cold start, is it normal for the reading to go into overload?

thanks -
joe

 

ive seen them read from .987 closed to no more than 4.5 wide open any under or above i would call out of spec so double check the bolts holding it and try to adjust it..hope that helps.

 

WOT is a bit of a misnomer. Typically, the TPS will be at WOT position when the throttle is really only at about halfway to fully WOT. If you show a smooth linear sweep from 1.0 to 4.5-5.0 the TPS should be fine. You never described the actual symptoms you're having when you say you can't get your car running proper.

 

thats good point, every time i start the car it revs to about 3K then slowly comes down and dies, but if i feather the throttle i can keep it alive but it will not rev above 4k, but after i start it and it dies about 3 times on the 4 try it will start and rev to 3k then drop down to a idle at about 1k -/+ 200 rpms but still not rev above 4k, i cant seem to get teh idle to come down to where it should and and when i am under the hood and try to rev it at the TB i can here the intake sucking air but the motor not responding.

--joe