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Series 5 turbo TPS Adjustment with Rtek chip Mod request?

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Old 12-13-23, 02:19 PM
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CA Series 5 turbo TPS Adjustment with Rtek chip Mod request?

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
Old 12-14-23, 12:13 PM
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um, what?

if you want to set the TPS just set the TPS
Old 12-29-23, 05:45 PM
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Originally Posted by j9fd3s
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
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