Nissan Frontier D22. Instruction — part 433
DTC P0172, P0175 FUEL INJECTION SYSTEM FUNCTION
EC-835
[VG33E]
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EC
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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EC
WITH GST
Follow the procedure “WITH CONSULT-II”.
EC-838
[VG33E]
DTC P0181 FTT SENSOR
Wiring Diagram
UBS00DJ1
BBWA1084E
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