High idle 2003 century
Code is P0122. No Tach on the cluster itself, the tool shows no rpm with KOEO. I sprayed engine down with carb clean and no changes in rpm’*, I have another tps coming its a delphi which I think is more along the lines of oem. I pull the air box to get to the pcm to back probe all the wires for the tps and they all have good continuity. So it’* the circuit low code that is coming up. Numbers are in range as per manual. I’m stumped at the moment.
Does it have the P0122 (or any other codes) stored currently?
Have you done a continuity check from the front side of the appropriate contacts (in the respective plugs) on each end of the wires for the TPS?
Have you done a continuity check from the front side of the appropriate contacts (in the respective plugs) on each end of the wires for the TPS?
No other stores codes, haven’t gotten a full drive cycle in since pulling the negative cable a few days ago, it the rpms are so high when I’m driving without my foot on the gas that I don’t really want to keep stressing it when I stop, it’* still trying to go. I checked continuity from the front side of the tps plug to the pcm, they all tested ok
New TPS in. Seems worse now, idle is around 300 rpms higher, that’* the third tps, I know you get some junk but I find it hard to believe that three are all bad. This one is a Delphi. Load was 5.5% in this run wouldn’t upload the pic, the tps when I was driving was all over the place. Kind of settled down once I was back parked and idle.









