2001 INFINITI QX4 Factory Service Manual

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Page 641 of 2395

INFINITI QX4 2001 Factory Service Manual 12 ADJUSTMENT THROTTLE POSITION SWITCH CLOSED POSITION-I With CONSULT-II 1. Loosen throttle position sensor fixing bolts. 2. Confirm that proper vacuum is applied. Refer to test No. 10. During adjustm

Page 642 of 2395

INFINITI QX4 2001 Factory Service Manual 13 ADJUSTMENT THROTTLE POSITION SWITCH CLOSED POSITION-II With CONSULT-II 1. Temporarily tighten sensor body fixing bolts as follows. IGradually move the sensor body clockwise and stop it when ªCLSD

Page 643 of 2395

INFINITI QX4 2001 Factory Service Manual 14 RESET THROTTLE POSITION SENSOR IDLE POSITION MEMORY With CONSULT-II NOTE: Always warm up engine to normal operating temperature. If engine is cool, the throttle position sensor idle posi- tion memo

Page 644 of 2395

INFINITI QX4 2001 Factory Service Manual 15 CHECK THROTTLE POSITION SWITCH CLOSED POSITION-II 1. Disconnect closed throttle position switch harness connector. 2. Check continuity between closed throttle position switch terminals6and5under th

Page 645 of 2395

INFINITI QX4 2001 Factory Service Manual 16 ADJUSTMENT THROTTLE POSITION SWITCH CLOSED POSITION-I 1. Loosen throttle position sensor fixing bolts. 2. Confirm that proper vacuum is applied. Refer to Test No. 10. During adjustment, vacuum shou

Page 646 of 2395

INFINITI QX4 2001 Factory Service Manual 17 ADJUSTMENT THROTTLE POSITION SWITCH CLOSED POSITION-II 1. Temporarily tighten sensor body fixing bolts as follows. IGradually move the sensor body clockwise and stop it when the continuity comes to

Page 647 of 2395

INFINITI QX4 2001 Factory Service Manual 19 CHECK (1ST TRIP) DTC 1. Turn ignition switch ªOFFº. 2. Release vacuum from throttle opener. 3. Remove vacuum pump and vacuum hose from throttle opener. 4. Reinstall original vacuum hose to thrott

Page 648 of 2395

INFINITI QX4 2001 Factory Service Manual 23 CHECK TARGET IDLE SPEED AGAIN With CONSULT-II 1. Start engine and warm it up to normal operating temperature. 2. Select ªENG SPEEDº in ªDATA MONITORº mode with CONSULT-II. 3. Check idle speed.
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