STP SENSOR ADJUSTMENT
If the STP sensor adjustment is necessary, measure the sensor
output voltage and adjust the STP sensor position as follows:
• Disconnect the STVA lead wire coupler.
• Remove the air cleaner box cover. (2-4)
• Insert the needle pointed probes to the STP sensor coupler.
• Turn the ignition switch ON.
• Close the secondary throttle valve by finger, and measure the
STP sensor output voltage.
STP sensor output voltage
ST valve is fully closed: 0.48 – 0.52 V ( Y – B)
\ 09900-25008: Multi-circuit tester set
09900-25009: Needle pointed probe set
W Tester knob indication: Voltage ()
• Loosen the STP sensor mounting screw.
• Adjust the STP sensor
within the specified value and tighten the STP sensor mount-
ing screw.
\ 09930-11950: Torx wrench
" STP sensor mounting screw: 3.5 N·m (0.35 kgf-m, 2.5 lb-ft)
until the output voltage comes
FUEL SYSTEM AND THROTTLE BODY 5-23
V