Stp Sensor Inspection; Stp Sensor Adjustment - Suzuki GSX-R750 Service Manual

1C-7 Engine Electrical Devices:
Installation
Install the TO sensor in the reverse order of removal.
Pay attention to the following point:
• When installing the TO sensor, bring the "UP" letters
upward.

STP Sensor Inspection

Refer to "DTC "C29" (P1654-H/L): Secondary Throttle
Position Sensor (STPS) Circuit Malfunction in Section
1A (Page 1A-82)".

STP Sensor Adjustment

Adjust the STP sensor in the following procedures:
1) Remove the air cleaner box. Refer to "Air Cleaner
Box Removal and Installation in Section 1D
(Page 1D-7)".
2) Disconnect the STVA lead wire coupler (1).
3) Insert the needle pointed probes to the STP sensor
coupler (between Y and B wires).
4) Turn the ignition switch ON.
I837H1130019-01
B838H21306019
B838H21306020
1
I837H1130020-03
5) Close the secondary throttle valve by finger and
measure the STP sensor output voltage.
Special tool
(A): 09900–25008 (Multi-circuit tester set)
(B): 09900–25009 (Needle pointed probe
set)
Tester knob indication
Voltage ( )
STP sensor output voltage
ST valve is fully closed: Approx. 0.6 V ((+): Y – (–
): B)
V
6) Move the throttle body upward by loosing the throttle
body mounting screw.
7) Loosen the STP sensor mounting screw using the
special tool and adjust the STP sensor until the
output voltage comes within the specified value.
Special tool
: 09930–11950 (Torx wrench)
I718H1130017-01
(A)
(B)
I837H1130021-01