My car is throwing a 23 code, now that says error at TPS or MAT sensor error. and its weird, i bought a new MAT sensor and a new TPS sensor and set that at .540 i have no idea why it throws this code, it wont stay running worth beans and when i run it up to temp the light will go off and itll stay idling. anyone have any clue? almost all the sensors on the car are new, MAF,MAT, Knock sensor, ESC module, Ignition Module, ect. i dont know whats going on with this thing but it hessitates which makes me think its the TPS but what gives? id really appreciate it if someone could help me out!

 

Would you believe that the TPS, MAT, and Coolant Temp Sensor (CTS) all share the same ground to the ECM. Not saying this is the cause of your probelm, just mentioning it as a thought.

 

Hmm the ground goes to the ECM, by any chance would it be the grounds that go to the back of the head?

 

No they run straight to the ECM.

 

ok well that cancels out my idea, i thought i might have burnt a ground off that goes to the back of the head but i dont think an did and it doesnt seem like that would be it anyways.....? this is really confusing me. the light even goes off after it gets up to temp.....very very odd. do you think it could be the ground is bad that goes to the ECM, any way to check it?

 

What do you have the TPS voltage set at and have you checked to see if the TPS might be binding a little?

 

The voltage is at .540 and im not sure if its binding, i can go check right now.

 

possibly be a problem with the ECM? and the TPS isnt binding at all.