Toyota Tundra (2015 year). Manual — part 1999
OK
RESULT
PROCEED TO
HINT:
GO TO STEP 102
A
REPAIR OR REPLACE FUEL LINE
102. 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
103. CHECK PURGE VSV
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
OK
(b) Start the engine.
(c) Idle the engine.
Standard:
Air does not flow
HINT:
When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs
.
NG
INSPECT PURGE VSV
104. CHECK FUEL INJECTOR
RESULT
PROCEED TO
4000 ppm or higher
A
Less than 4000 ppm
B
HINT:
If the concentration is 4000 ppm or higher, a fuel injector may have a sealing problem.
Perform "Inspection After Repair" after replacing the fuel injector assembly
.
B
GO TO STEP 105
A
REPLACE FUEL INJECTOR
105. CHECK INTAKE VALVE
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
A
(a) Check if carbon is on the intake valves.
RESULT
PROCEED TO
Carbon present
A
No carbon present
B
B
GO TO STEP 106
A
CLEAN INTAKE VALVE
106. READ VALUE USING TECHSTREAM (ISC LEARNING VALUE)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Start the engine, turn off all accessory switches and warm up the engine until the engine coolant
temperature stabilizes.
(d) Using the Techstream, select and read [ISC Learning Value] in the Data List.
DATA LIST ITEM
RESULT
SUSPECTED AREA
PROCEED TO
ISC Learning Value
(engine displacement (liters) x 0.9) or more
Valve timing
Compression
A
Less than (engine displacement (liters) x 0.9)
-
B
B
GO TO STEP 108
107. CHECK CYLINDER COMPRESSION PRESSURE
(a) Inspect the compression
.
HINT:
Perform "Inspection After Repair" after replacing the engine assembly
.
NG
REPAIR OR REPLACE ENGINE ASSEMBLY
OK
ADJUST VALVE TIMING
108. INSPECT ENGINE COOLANT TEMPERATURE SENSOR
(a) Inspect the engine coolant temperature sensor
.
HINT:
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
OK
OK
OK
Perform "Inspection After Repair" after replacing the engine coolant temperature sensor
.
NG
REPLACE ENGINE COOLANT TEMPERATURE SENSOR
109. CHECK CRANKSHAFT POSITION SENSOR
OK:
Sensor is installed correctly.
NG
SECURELY REINSTALL SENSOR
110. CHECK CAMSHAFT POSITION SENSOR
OK:
Sensor is installed correctly.
NG
SECURELY REINSTALL SENSOR
111. CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)
(a) Disconnect the crankshaft position sensor connector.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
D3-1 (NE+) - D74-110 (NE+)
Always
Below 1 Ω
D3-2 (NE-) - D74-111 (NE-)
Always
Below 1 Ω
D3-3 (VC) - D74-66 (VCV2)
Always
Below 1 Ω
3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
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