Toyota Tundra (2015 year). Manual — part 1248
A
OK
OK
Result
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
97.
CHECK CRANKSHAFT POSITION SENSOR
OK:
Sensor is installed correctly.
NG
SECURELY REINSTALL SENSOR
98.
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
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
99.
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)
100.
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE FUEL PUMP / SPEED)
(a) Connect the Techstream to the DLC3.
(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 101
A
REPAIR OR REPLACE FUEL LINE
101.
INSPECT FUEL PUMP
(a) Remove the fuel suction tube.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
OK
(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
102.
CHECK PURGE VSV
(b) Start the engine.
(c) Idle the engine.
Standard:
Air does not flow
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
OK
HINT:
When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs
.
NG
INSPECT PURGE VSV
103.
CHECK FUEL INJECTOR ASSEMBLY
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 104
A
REPLACE FUEL INJECTOR ASSEMBLY
104.
CHECK INTAKE VALVE
(a) Check if carbon is on the intake valves.
RESULT
PROCEED TO
Carbon present
A
No carbon present
B
B
GO TO STEP 105
A
CLEAN INTAKE VALVE
105.
READ VALUE USING TECHSTREAM (ISC LEARNING VALUE)
(a) Connect the Techstream to the DLC3.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P1604; Startabi...
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст