2005 INFINITI QX4 fuel

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INFINITI QX4 2005  Factory Service Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
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Revision: October 20052005 QX56
EXPLANATION FOR DRIVING PATTERNS FOR “MISFIRE <EXHAUST QUALITY DETERIORA-
TION>”, “FUEL INJECTION

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INFINITI QX4 2005  Factory Service Manual EC-70Revision: October 2005
ON BOARD DIAGNOSTIC (OBD) SYSTEM
2005 QX56
RELATIONSHIP BETWEEN MIL, DTC, 1ST TRIP DTC AND DRIVING PATTERNS EXCEPT  FOR 
“MISFIRE <EXHAUST QUALITY DETERIORATION>”, “F

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INFINITI QX4 2005  Factory Service Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
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Revision: October 20052005 QX56
EXPLANATION FOR DRIVING PATTERNS EXCEPT  FOR “MISFIRE <EXHAUST QUALITY 
DETERIORATION>”, “FUEL IN

Page 1270 of 3419

INFINITI QX4 2005  Factory Service Manual BASIC SERVICE PROCEDURE
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Revision: October 20052005 QX56
Idle Mixture Ratio AdjustmentUBS00KZW
PREPARATION
1. Make sure that the following parts are in good order.
Batt

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INFINITI QX4 2005  Factory Service Manual EC-86Revision: October 2005
BASIC SERVICE PROCEDURE
2005 QX56
19. CHECK AIR FUEL RATIO (A/F) SENSOR 1 FUNCTION
 With CONSULT-II
1. Turn ignition switch OFF and wait at a least 10 seconds.
2. Start eng

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INFINITI QX4 2005  Factory Service Manual BASIC SERVICE PROCEDURE
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Revision: October 20052005 QX56
21. CHECK AIR FUEL RATIO (A/F) SENSOR 1 HARNESS
1. Turn ignition switch OFF and disconnect battery ground cable.

Page 1279 of 3419

INFINITI QX4 2005  Factory Service Manual EC-88Revision: October 2005
BASIC SERVICE PROCEDURE
2005 QX56
25. CHECK CO%
 With CONSULT-II
1. Start engine and warm it up until engine coolant temperature indicator points the middle of gauge.
2. Tu

Page 1280 of 3419

INFINITI QX4 2005  Factory Service Manual BASIC SERVICE PROCEDURE
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Revision: October 20052005 QX56
29. CHECK AIR FUEL RATIO (A/F) SENSOR 1 FUNCTION
 With CONSULT-II
1. Turn ignition switch OFF and wait at a leas