Nissan Frontier D22. Manual - part 433

 

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Nissan Frontier D22. Manual - part 433

 

 

DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION

EC-835

[VG33E]

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8. 

CHECK INJECTOR

1.

Remove injector assembly. Refer to 

EM-80, "OUTER COMPONENT PARTS"

 .

Keep fuel hose and all injectors connected to injector gallery.

2.

Confirm that the engine is cooled down and there are no fire hazards near the vehicle.

3.

Disconnect injector harness connectors bank 2 (for DTC P0172), right bank (for P0175).
The injector harness connectors on bank 1 (for P0172), left bank (for P0175) should remain connected.

4.

Disconnect all ignition coil harness connectors.

5.

Prepare pans or saucers under each injectors.

6.

Crank engine for about 3 seconds.
Make sure fuel does not drip from injector.

OK or NG

OK (Does not drip)>>GO TO 9.
NG (Drips)>>Replace the injectors from which fuel is dripping. Always replace O-ring with new one.

9. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-696, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END.

EC-836

[VG33E]

DTC P0181 FTT SENSOR

DTC P0181 FTT SENSOR

PFP:22630

Component Description

UBS00DIY

The fuel tank temperature sensor is used to detect the fuel tempera-
ture inside the fuel tank. The sensor modifies a voltage signal from
the ECM. The modified signal returns to the ECM as the fuel temper-
ature input. The sensor uses a thermistor which is sensitive to the
change in temperature. The electrical resistance of the thermistor
decreases as temperature increases.

<Reference data>

*: These data are reference values and are measured between ECM terminal 60
(Fuel tank temperature sensor) and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output
voltage. Doing so may result in damage to the ECM's transistor.
Use a ground other than the ECM terminals, such as the ground.

On Board Diagnosis Logic

UBS00DIZ

DTC Confirmation Procedure

UBS00DJ0

NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 5 seconds before conducting the next test.

 WITH CONSULT-II

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Wait at least 10 seconds.
If the result is NG, go to 

EC-839, "Diagnostic Procedure"

 .

If the result is OK, go to following step.

4.

Check “COOLAN TEMP/S” value.
If “COOLAN TEMP/S” is less than 60

°C (140°F), the result will

be OK.
If “COOLAN TEMP/S” is above 60

°C (140°F), go to the following

step.

5.

Cool engine down until “COOLAN TEMP/S” is less than 60

°C

(140

°F).

6.

Wait at least 10 seconds.

7.

If 1st trip DTC is detected, go to 

EC-839, "Diagnostic Procedure"

 .

LEC764

Fluid temperature

°C (°F)

Voltage*

(V)

Resistance

(k

Ω)

20 (68)

3.5

2.3 - 2.7

50 (122)

2.2

0.79 - 0.90

SEF012P

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0181

Fuel tank temperature 
sensor circuit range/
performance

Rationally incorrect voltage from the sensor is 
sent to ECM, compared with the voltage sig-
nals from engine coolant temperature sensor 
and intake air temperature sensor.

Harness or connectors
(The sensor circuit is open or shorted)

Fuel tank temperature sensor

SEF174Y

DTC P0181 FTT SENSOR

EC-837

[VG33E]

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 WITH GST

Follow the procedure “WITH CONSULT-II”.

EC-838

[VG33E]

DTC P0181 FTT SENSOR

Wiring Diagram

UBS00DJ1

BBWA1084E

 

 

 

 

 

 

 

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