CONTROL SYSTEM — Volume Air Flow Sensor / Throttle Position Sensor Inspection

F2-150prose procedure

VOLUME AIR FLOW SENSOR

Terminal	Resistance (Ω)
E2 ↔ VS	200—1,000 (Closed; 20°C {68°F}); 20—800 (Open; 20°C {68°F})
E2 ↔ VC	200—400 (Closed ↔ Open; 20°C {68°F})
E2 ↔ THA (Intake air temperature sensor)	20°C {68°F}: 2,000—3,000; 60°C {140°F}: 400—700

E2 ↔ VS

Resistance (Ω)200—1,000 (Closed; 20°C {68°F}); 20—800 (Open; 20°C {68°F})

E2 ↔ VC

Resistance (Ω)200—400 (Closed ↔ Open; 20°C {68°F})

E2 ↔ THA (Intake air temperature sensor)

Resistance (Ω)20°C {68°F}: 2,000—3,000; 60°C {140°F}: 400—700

(Refer to page F2-95.)

1
Turn the ignition switch to OFF and the throttle valve to the closed throttle position.
2
Disconnect the throttle position sensor connector.
3
Check continuity between the throttle position sensor terminals C and D.
4
If no continuity, adjust the throttle position sensor. (Refer to page F2-151.)
5
Insert a feeler gauge of 0.5 mm {0.020 in} between the stopper and the throttle lever.
6
Verify that there is no continuity between the throttle position sensor terminals C and D.
7
If continuity, adjust the throttle position sensor. (Refer to page F2-151.)

Terminals	Throttle valve closed throttle position
C—D	Continuity

C—D

Throttle valve closed throttle positionContinuity

1
Remove the ECM. (Refer to page F2-141.)
2
Connect the SSTs (Engine Signal Monitor and Adapter Harness) to the ECM.
3
Set the SST (Engine Signal Monitor) to position 2F.
4
Turn the ignition switch to ON.
5
Rotate the throttle link by hand and verify that voltage is within the specification.
6
If not as specified, adjust the throttle position sensor. (Refer to page F2-151.)

ECM terminal	Throttle valve position — Closed throttle position	Throttle valve position — Wide open throttle
2F	0.1—1.1V	2.8—4.5V

Throttle valve position — Closed throttle position0.1—1.1V

Throttle valve position — Wide open throttle2.8—4.5V