I just replaced the throttle position sensor on my '92 RS. Now it's throwing a code stating the TPS is too low. How do I adjust it? There is no lever, it mounts flush with the throttle body assembly. Any suggestions?

 

you need to use a voltmeter, and loosen either top or bottom of the tps, turn the key on, find the output wire not sure which, Then set it to .54 volts closed throttle

 

Every TPS for FI cars I've ever seen have a tang that has to be in contact with the throttle linkage. Most of the "low TPS" codes are either from incorrect installation or a bad TPS. I know you just replaced it but parts are known to be bad out of the box. Check the resistance of the TPS with the plug disconnected - if it does'nt change it's probably not engaging the throttle tang.

 

Turns out there is no adjustment for the tps on the 3.1L V6. The parts house gave me the wrong part! Once the new one was in it ran like a dream! Thanks for the input, though!

 

What made you change your TPS? How was the car acting?

 

In warm weather (70+) the car would try to stall, felt like it was missing, and would idle sporadically. The only code was for the coolant temp sensor. I replaced the cts and that didn't resolve the problem. After researching the forums here I thought the most likely suspect (and easiest to fix) would be the tps. Long story short, after putting the right unit in, the problem is 90% better! Still has a couple issues (now it's throwing a code 53: system voltage too high), but it's much better than it was!