throttle position sensor
how do you adjust the TPS correctly? how should it be positioned? I have already changed it, but it's still not running properly and the check engine light comes on periodically. (I also changed the O2 sensor already and I still get the engine light, and the catalytic is fine)
what code do you get?
The TPS needs to be adjusted to .54 volts at idle. If the TPS is not adjusted correctly you could be getting an SES light from that.