Throttle Position Sensor Setting


You want to check it in Volts with a digital volt-meter.
With the key on/engine off you want to probe the black wire (ground) 
on the TPS and the green wire (positive).  In theory, the closer you 
come to 1.00 volts without going over, the better throttle response 
you will have.  So, 0.99 volts should be the best (i have mine set at 0.96).  
If you go over 1.00 volts, you may or will have driveability problems.  
If you need to adjust the TPS because the reading is too low, you need 
to loosen the two Phillips head screws holding the TPS on the throttle body.  
To increase the voltage, turn the TPS clockwise and counter clockwise to 
decrease the voltage.  Sometimes the screw holes will not allow you to 
adjust the TPS to 0.99 volts, so you may have to drill out the TPS screw 
holes a little bit to make them larger or slotted in order to get the setting 
you want.  Once at the desired voltage, tighten the screws and you're done.