Im having trouble starting the diagnostic process of the throttle position sensor (TPS) my 89-91 has the RTEK chip mod that disengages the Cold-Start process. apparently they is 3 adjustment screws i need to Mess with as follow: the #1 is called Nut adjustment screw
the #2 is Throttle stop screw (driverside fender) and the #3 another stop screw (passenger side fender).

my car dies when my foot is off the gas pedal only my guys,,. so what adjustment screw do i mess with?

is it the Stop screws number #2 or #3 that i need to mess with Only?

the FSM said that the series 5 has a throttle position auto-adjust system built in the ECU so im confused if i just skip #1

What would you adjust if you had the Rtek chip thanks

 

um, what?

if you want to set the TPS just set the TPS

 

J9fd3s ill take your advice my results are....

Narrow Range--->Closed---->Results 1.27
Narrow Range--->Full Throttle--->Results 5.25

Full Range--->Closed--->Results 0.95
Full Range--->Full throttle-->Results 4.95