Quote
what is a sign of a bad tps?


Some symptoms listed on my web page:
http://www.4crawler.com/4x4/CheapTricks/TPS/index.shtml#Troubleshooting

The bottom 2 pins sound like IDL and E2, if so, that is the important reading, without that the ECU never know the throttle is closed, so it won't enter the stable idle mode.