I have two tps sensors for my 94 lt1 camaro and don't know which to use they both have different readings at idle.One has .70 at idle and the other .61 and they both have readings over 4.5 volts at full throttle. The reason I ask is that i am running a little rich at idle and am trying to minimize it.What should be the voltages for the tps sensor be anyways?Thanks for reading

 

I believe they both fall in tolerance

 

so i wouldnt suffer from using one or the other

 

Idle should be between .2 and .9 volts (GM recommends around .6v). WOT should not go higher than 4.8v.

 

I once pulled the tps off my buddies m6 TA and it made my a4 run like crap. So I had to get the right one for the tranny.

 

Either will work. The computer takes a reading of the closed throttle TPS voltage every time you turn the key to ON before starting the engine. As long as it is within the .2v-.9v range the computer will accept it and set it at 0% throttle for that key ON sequence. The WOT reading should closely match the supply voltage from the computer to the sensor (normally 4.5v-5v).

If you want to be able to adjust the closed throttle TPS voltage, you have to slot the TPS mounting holes to allow you to rotate the sensor a little. People normally have to do this on aftermarket TBs to get the voltage in the correct range.