2001 NISSAN X-TRAIL Service Repair Manual

Page 553 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual DTC P0171 FUEL INJECTION SYSTEM FUNCTION
EC-203
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Diagnostic ProcedureEBS00M4P
1.CHECK EXHAUST GAS LEAK
1. Start engine and run it at idle.
2. Listen for

Page 554 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual EC-204
[QR25(WITH EURO-OBD)]
DTC P0171 FUEL INJECTION SYSTEM FUNCTION
5. CHECK MASS AIR FLOW SENSOR
With CONSULT-II
1. Install all removed parts.
2. Check “MASS AIR FLOW” in “DATA MONITOR” mod

Page 555 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual DTC P0171 FUEL INJECTION SYSTEM FUNCTION
EC-205
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7.CHECK INJECTOR
1. Confirm that the engine is cooled down and there are no fire hazards near the vehicl

Page 556 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual EC-206
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DTC P0172 FUEL INJECTION SYSTEM FUNCTION
DTC P0172 FUEL INJECTION SYSTEM FUNCTION
PFP:16600
On Board Diagnosis LogicEBS00M4Q
With  the  Air-Fuel  Mixture  Ratio  Self-Lear

Page 557 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual DTC P0172 FUEL INJECTION SYSTEM FUNCTION
EC-207
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3. Disconnect  mass  air  flow  sensor  harness  connector.  Then
restart and run engine for at least 5

Page 558 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual EC-208
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DTC P0172 FUEL INJECTION SYSTEM FUNCTION
Wiring Diagram
EBS00M4S
TBWA0063E

Page 559 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual DTC P0172 FUEL INJECTION SYSTEM FUNCTION
EC-209
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Diagnostic ProcedureEBS00M4T
1.CHECK EXHAUST GAS LEAK
1. Start engine and run it at idle.
2. Listen for

Page 560 of 3833

NISSAN X-TRAIL 2001  Service Repair Manual EC-210
[QR25(WITH EURO-OBD)]
DTC P0172 FUEL INJECTION SYSTEM FUNCTION
5. CHECK MASS AIR FLOW SENSOR
With CONSULT-II
1. Install all removed parts.
2. Check “MASS AIR FLOW” in “DATA MONITOR” mod