So very frustrated with my 2003 Dodge Durango 4.7 liter.

The durango wont start or keep idling unless I press the gas pedal.

P0121 Code showing. I have changed the TPS, MAP and the IAC.... still having the problem! Any ideas?!?! Thanks!

 

Anyone?

 

How far do you have to push the pedal down to keep it running
how many rpms

 

dango...unplug the tps, key to run, engine off. with a voltmeter measure the voltages on the 3 wires of the tps and report back the result.