6-22
FUEL SYSTEM AND THROTTLE BODY
STP SENSOR ADJUSTMENT If the STP sensor adjustment is necessary, measure the sensor out put voltage and adjust the STP sensor position as follows: • Remove the air cleaner chamber. ("6-13) • Disconnect the STVA coupler. ("6-14) • Insert the needle pointed probes to the STP sensor lead wire coupler. • Turn the ignition switch ON. • Close the secondary throttle valve by finger, and measure the STP sensor out put voltage. % STP sensor out put voltage ST valve is fully closed: Approx. 0.6 V (+ Y/W – - B/Br)
V
B/Br
$ 09900-25008: Multi-circuit tester set 09900-25009: Needle pointed probe set + Tester knob indication: Voltage (,)
• If the STP sensor voltage is out of specification, loosen the STP sensor mounting screw and adjust the STP sensor voltage to specification. • Tighten the STP sensor mounting screw. $ 09930-11950: Torx wrench ( STP sensor mounting screw: 3.5 N·m (0.35 kgf-m, 2.5 lb-ft)
FUEL INJECTOR REMOVAL • Remove the fuel tank. ("6-3) • Remove the air cleaner chamber. ("6-13) • With battery negative cable disconnected, disconnect the injector couplers. • Remove the fuel delivery pipes. ("6-15) • Remove the fuel injectors. ("6-16)
FUEL INJECTOR INSPECTION Check fuel injector filter for evidence of dirt and contamination. If present, clean and check for presence of dirt in the fuel lines and fuel tank. The fuel injector can be checked without removing it from the throttle body. Refer to page 5-68 for details.
Y/W