Nissan Sentra Service Manual: Fuel injector
Component Function Check
1.INSPECTION START
Turn ignition switch to START.
Is any cylinder ignited? YES >> GO TO 2.
NO >> Proceed to EC-450, "Diagnosis Procedure".
2.CHECK FUEL INJECTOR FUNCTION
With CONSULT
- Start engine.
- Perform “POWER BALANCE” in “ACTIVE TEST” mode of “ENGINE” using CONSULT.
- Check that each circuit produces a momentary engine speed drop
Without CONSULT
- Let engine idle.
- Listen to each fuel injector operating sound.
Clicking noise should be heard.
Is the inspection result normal? YES >> INSPECTION END
NO >> Proceed to EC-450, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK FUSE
- Turn ignition switch OFF.
- Pull out #52 fuse and check that the fuse is not fusing.
Is the inspection result normal? YES >> GO TO 2.
NO >> Replace the fuse after repairing the applicable circuit.
2.CHECK FUEL INJECTOR POWER SUPPLY
- Insert the fuse which pulled out.
- Disconnect fuel injector harness connector.
- Turn ignition switch ON.
- Check the voltage between fuel injector harness connector and ground.
Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect IPDM E/R harness connector.
- Check the continuity between fuel injector harness connector and IPDM E/R harness connector
- Also check harness for short to ground.
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Repair or replace error-detected parts.
4.CHECK FUEL INJECTOR CONTROL CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between fuel injector harness connector and ECM harness connector.
- Also check harness for short to ground and to power.
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts
5.CHECK FUEL INJECTOR
Check the fuel injector. Refer to EC-451, "Component Inspection (Fuel Injector)".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident" NO >> Replace malfunctioning fuel injector. Refer to EM-40, "Removal and Installation".
Component Inspection (Fuel Injector)
1.CHECK FUEL INJECTOR
- Turn ignition switch OFF.
- Disconnect fuel injector harness connector.
- Check resistance between fuel injector terminals as per the following.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace malfunctioning fuel injector. Refer to EM-40, "Removal and Installation"
ASCD Indicator
Component Function Check
1.CHECK ASCD INDICATOR FUNCTION
Check ASCD indicator under the following conditions.
ASCD INDICATOR
CONDITION
SPECIFICATION
CRUISE LAMP
Ig ...
Fuel pump
Component Function Check
1.CHECK FUEL PUMP FUNCTION
Turn ignition switch ON.
Pinch fuel feed hose with
two fingers.
Fuel pressure pulsation should be felt on the fuel feed
hose for ...
Other materials:
Bluetooth® streaming audio without Navigation System (if so equipped)
If you have a compatible Bluetooth® audio device
that is capable of playing audio files, the
device can be connected to the vehicle’s audio
system so that the audio files on the device play
through the vehicle’s speakers.
Connecting Bluetooth® audio
To connect your Bluetooth® audio devi ...
Tire dressings
NISSAN does not recommend the use of tire
dressings. Tire manufacturers apply a coating to
the tires to help reduce discoloration of the rubber.
If a tire dressing is applied to the tires, it may
react with the coating and form a compound. This
compound may come off the tire while driving and ...
Component parts
Component parts location
Bcm (view with instrument panel removed)
Ipdm e/r (rear window defogger relay)
A/c auto amp. (View with a/c switch
assembly removed)
A/C switch assembly (rear window defogger
switch) (with auto A/C)
A/c switch assembly (rear window
defogger switch) (wit ...
