Do you have to set the voltage of the throttle body sensor everytime you replace the throttle body so that the sensor will send the right voltage to the ECU when the throttle is closed to have proper idle?
What if I just unpluged the sensor without replacing the throttle body............do I still have to set the voltage or is it only compulsory when I remove the throttle body as well?

 

NO If you unbolt the throttle body from the intake manifold.
YES If you unbolt the TPS sensor from the throttle body.
NO If you seperate the electrical loom from the TPS sensor.

Use your Helms manual and a voltmeter to determine if the voltage is correct.

 

I thinkif you replace the throttlebody with another one it would be wise to reset the ECU so that it relearns your 0-100% voltage range.

With the E-manage there is a simply calibration process when you set it up so that it learns the range.

 

It doesn't work that way. You will need to make your adjustment at the throttle body. You can swap throttle bodies at will if they are properly calibrated.

 

Bummer.............................I guess I'm just going to have to reset the voltage then....

 

It's not hard to do, but it helps if you measured the closed voltage before changing the TB or taking it apart.

I put a Proflow on mine and set it to the same idle voltage as the original TB, did NOT reset the ECM, and it ran perfect.

 

It's just that I was trying to remove the throttle body because
I needed to get it bored to 70mm........so there I was trying to take the damn thing apart...........I was stuck at the throttle linkage cable.....I had no idea how to remove that damn coil!!!
So I ended putting everything back together.......then I remembered somthing about resetting the voltage on the tps everytime you remove it but I wasn't quite sure so I starting asking opinions from you guys the pros. And my worst fear was confirmed.....I had to reset it.