2001 NISSAN ALMERA Service Manual

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NISSAN ALMERA 2001  Service 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 1026 of 2898

NISSAN ALMERA 2001  Service Manual 4 CHECK FUEL PRESSURE
1. Release fuel pressure to zero.
Refer to EC-40.
2. Install fuel pressure gauge and check fuel pressure.
At idling:
When fuel pressure regulator valve vacuum hose is connected.

Page 1027 of 2898

NISSAN ALMERA 2001  Service Manual 7 CHECK FUNCTION OF INJECTORS
With CONSULT-II
1. Install all parts removed.
2. Start engine.
3. Perform ªPOWER BALANCEº in ªACTIVE TESTº mode with CONSULT-II.
SEF190Y
4. Make sure that each circui

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NISSAN ALMERA 2001  Service Manual 9 CHECK INJECTOR
1. Disconnect all ignition coil harness connectors.
2. Place pans or saucers under each injector.
3. Crank engine for about 3 seconds. Make sure that fuel sprays out from injectors.
S

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NISSAN ALMERA 2001  Service 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

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NISSAN ALMERA 2001  Service Manual 7) Start engine again and run it for at least 10 minutes at idle
speed.
8) Select ªMODE 7º with GST. The 1st trip DTC P0172 should be
detected at this stage, if a malfunction exists. If so, go to
ª

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NISSAN ALMERA 2001  Service Manual Wiring DiagramNJEC0194SEDAN MODELS AND HATCHBACK MODELS WITH
ECM IN ENGINE COMPARTMENT
NJEC0194S03
HEC789
DTC P0172 FUEL INJECTION SYSTEM FUNCTION (RICH SIDE)QG
Wiring Diagram
EC-307

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NISSAN ALMERA 2001  Service Manual HATCHBACK MODELS WITH ECM IN CABINNJEC0194S04
HEC944
DTC P0172 FUEL INJECTION SYSTEM FUNCTION (RICH SIDE)QG
Wiring Diagram (Contd)
EC-308