2007 INFINITI QX56 fuel pressure

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Page 1105 of 3061

INFINITI QX56 2007  Factory Service Manual EC-22
< SERVICE INFORMATION >
PREPARATION
Commercial Service Tool
INFOID:0000000003531584
(J-45488)
Quick connector re-
leaseRemove fuel tube quick connectors in engine 
room.
(J-23688)
Engine coolant

Page 1108 of 3061

INFINITI QX56 2007  Factory Service Manual ENGINE CONTROL SYSTEM
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< SERVICE INFORMATION >
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*1: This sensor is not used to control the engine system. This is used only for the on board diagnosis.
*2: This sig

Page 1119 of 3061

INFINITI QX56 2007  Factory Service Manual EC-36
< SERVICE INFORMATION >
EVAPORATIVE EMISSION SYSTEM
Check EVAP canister as follows:
1. Block port B.
2. Blow air into port Aand check that it flows freely out of port C.
3. Release blocked port

Page 1120 of 3061

INFINITI QX56 2007  Factory Service Manual EVAPORATIVE EMISSION SYSTEM
EC-37
< SERVICE INFORMATION >
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Positive pressure is delivered to the EVAP system through the EVAP
service port. If fuel vapor leakage in the

Page 1123 of 3061

INFINITI QX56 2007  Factory Service Manual EC-40
< SERVICE INFORMATION >
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
System DescriptionINFOID:0000000003531598
From the beginning of refueling, the air and v

Page 1124 of 3061

INFINITI QX56 2007  Factory Service Manual ON BOARD REFUELING VAPOR RECOVERY (ORVR)
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< SERVICE INFORMATION >
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Does water drain from the EVAP canister?
Ye s  o r  N o
Yes >> GO TO 3.
No >> GO TO 5.
3.REPLACE

Page 1126 of 3061

INFINITI QX56 2007  Factory Service Manual ON BOARD REFUELING VAPOR RECOVERY (ORVR)
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< SERVICE INFORMATION >
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2. Drain fuel from the tank as follows:
a. Remove fuel feed hose located on the fuel gauge retain

Page 1127 of 3061

INFINITI QX56 2007  Factory Service Manual EC-44
< SERVICE INFORMATION >
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
d. Apply vacuum pressure to hose end [−13.3 kPa (−100 mmHg, −3.94 inHg)] with fuel gauge retainer
remaining open and check
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