Toyota Tundra (2015 year). Manual — part 1247
A
A
87.
READ VALUE USING TECHSTREAM (LONG FT)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Using the Techstream, select and read [Long FT] in the Data List.
DATA LIST ITEM
RESULT
SUSPECTED AREA
PROCEED TO
Long FT
-15 to +15%
Wire harness or connector
Fuel
A
+15% or more, or less than -15%
Fuel injector
B
HINT:
Perform "Inspection After Repair" after replacing the fuel injector assembly
.
B
REPLACE FUEL INJECTOR ASSEMBLY
88.
PERFORM SIMULATION TEST
(a) Check if the idling speed after starting the engine is currently stable and has always been stable in the
past.
PROBLEM SYMPTOM
SUSPECTED AREA
PROCEED TO
A
All current and past idling speeds are stable
Fuel
B
HINT:
Through the customer problem analysis, confirm the fuel being used and the location at which the fuel was added
to check if the malfunction is caused by the fuel in the vehicle.
B
REPLACE FUEL
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
OK
OK
89.
CHECK CRANKSHAFT POSITION SENSOR
OK:
Sensor is installed correctly.
NG
SECURELY REINSTALL SENSOR
90.
CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)
(a) Check the harnesses and connectors, referring to DTC P0335 inspection procedure
.
HINT:
REPAIR OR REPLACE HARNESS OR CONNECTOR
91.
CHECK CRANKSHAFT POSITION SENSOR
(a) Replace the crankshaft position sensor
.
(b) Check the engine start operation.
OK:
Malfunction has been repaired successfully.
NG
REPLACE ECM
OK
END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)
92.
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED)
(a) Connect the Techstream to the DLC3.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
(b) Turn the ignition switch to ON.
(c) Using the Techstream, select the [Control the Fuel Pump / Speed] Active Test.
(d) When performing the Active Test, check for fuel leakage from the fuel pipes.
Result
RESULT
PROCEED TO
HINT:
GO TO STEP 93
A
REPAIR OR REPLACE FUEL LINE
93.
INSPECT FUEL PUMP
(a) Remove the fuel suction tube.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
4 (B) - 5 (E)
20°C
0.2 to 3.0 Ω
HINT:
Make sure there is no foreign matter such as iron particles on the fuel pump and no signs that the fuel pump was
stuck.
Make sure the internal connector is securely connected.
Make sure the fuel pump filter is not clogged.
Perform "Inspection After Repair" after replacing the fuel pump
.
NG
REPLACE FUEL PUMP
OK
REPLACE FUEL PRESSURE REGULATOR ASSEMBLY
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
A
A
94.
CHECK FUEL PRESSURE
HINT:
For the fuel pressure inspection, refer to the following procedures
.
(a) Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.
RESULT
PROCEED TO
147 kPa (1.5 kgf/cm
2
) or higher (5 minutes after stopping the engine)
A
Less than 147 kPa (1.5 kgf/cm
2
) (5 minutes after stopping the engine)
B
B
GO TO STEP 100
95.
READ VALUE USING TECHSTREAM (LONG FT)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Using the Techstream, select and read [Long FT] in the Data List.
DATA LIST ITEM
RESULT
SUSPECTED AREA
PROCEED TO
Long FT
-15 to +15%
Wire harness or connector
Fuel
A
+15% or more, or less than -15%
Fuel injector assembly
B
HINT:
Perform "Inspection After Repair" after replacing the fuel injector assembly
.
B
REPLACE FUEL INJECTOR ASSEMBLY
96.
PERFORM SIMULATION TEST
(a) Check if the idling speed after starting the engine is currently stable and has always been stable in the
past.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
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