2001 NISSAN ALMERA N16 Mass air flow sensor

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Page 522 of 2493

NISSAN ALMERA N16 2001  Electronic Repair Manual Diagnostic ProcedureNJEC0160
1 RETIGHTEN GROUND SCREWS
1. Turn ignition switch ªOFFº.
2. Loosen and retighten engine ground screws.
JEF104Y
©GO TO 2.
2 CLEAR THE SELF-LEARNING DATA
With CONSULT-II

Page 529 of 2493

NISSAN ALMERA N16 2001  Electronic Repair Manual Diagnostic ProcedureNJEC0169
1 RETIGHTEN GROUND SCREWS
1. Turn ignition switch ªOFFº.
2. Loosen and retighten engine ground screws.
JEF104Y
©GO TO 2.
2 CLEAR THE SELF-LEARNING DATA
With CONSULT-II

Page 544 of 2493

NISSAN ALMERA N16 2001  Electronic Repair Manual On Board Diagnosis LogicNJEC0188With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio feedb

Page 547 of 2493

NISSAN ALMERA N16 2001  Electronic Repair Manual Diagnostic ProcedureNJEC0191
1 CHECK EXHAUST AIR LEAK
1. Start engine and run it at idle.
2. Listen for an exhaust air leak before three way catalyst.
SEF099P
OK or NG
OK©GO TO 2.
NG©Repair or repla

Page 548 of 2493

NISSAN ALMERA N16 2001  Electronic Repair Manual 4 CHECK FUEL PRESSURE
1. Release fuel pressure to zero.
Refer to EC-38.
2. Install fuel pressure gauge and check fuel pressure.
At idling:
When fuel pressure regulator valve vacuum hose is connected.

Page 551 of 2493

NISSAN ALMERA N16 2001  Electronic Repair Manual On Board Diagnosis LogicNJEC0192With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio feedb

Page 555 of 2493

NISSAN ALMERA N16 2001  Electronic Repair Manual 3 CHECK FUEL PRESSURE
1. Release fuel pressure to zero.
Refer to EC-38.
2. Install fuel pressure gauge and check fuel pressure.
At idling:
When fuel pressure regulator valve vacuum hose is connected.

Page 563 of 2493

NISSAN ALMERA N16 2001  Electronic Repair Manual 13 CHECK MASS AIR FLOW SENSOR
With CONSULT-II
Check ªMASS AIR FLOWº in ªDATA MONITORº mode with CONSULT-II.
at idling: 1.0 - 4.0 g´m/sec
at 2,500 rpm: 5.0 - 10.0 g´m/sec
With GST
Check mass air