i installed the new TPS on my 1990 and set it but it still runs like ***! what should i do?

 

What are the symptoms it's having?

 

Did you adjust the voltage on the sensor? There are plenty of websites on the TPS installation and adjustments! Try this one, (Renix engine sensor diagnostics)

 

He said that he set the TPS.

 

What I meant, was a check on the smoothness of the voltage transition from .8 to 4.6 volts as the throttle is opened, etc.

 

well i put it on set it to .835 and started it up and it reved pretty high but then fixed itself. i then took it for a drive around the block and it didnt die and it went back to idle, so i went home and turned it off and started it one last time to make sure and it started up but it went back to how it was acting before i replaced it. and i did check the smoothness of the output and it seemed fine

 

Try this. Disconnect your battery negative cable for around ten minutes, then reconnect and take the vehicle for a half hour drive. Freeway speeds are good! This may give the ECM a chance to relearn the new sensor. I had to do this recently to my '88 XJ after replacing O2 and IAC sensors. After doing that everything settled down to normal! Good Luck!

 

i will definately try it!

 

i have a 1990 4.0 L6 cherokee with a manual trans. just replaced the tps. how do i set it?

 

Merged your two threads.

http://www.lunghd.com/Tech_Articles/...iagnostics.htm