Toyota Tundra (2015 year). Manual — part 1300
19.
INSPECT CANISTER ASSEMBLY (CHARCOAL FILTER INSIDE CANISTER)
(a) Check for filter blockage in the canister assembly
.
OK:
No blockages in the canister assembly.
OK
GO TO STEP 47
NG
GO TO STEP 48
20.
CHECK FUEL TANK CAP ASSEMBLY
(a) Check that the fuel tank cap is correctly installed and confirm that the fuel tank cap meets OEM
specifications.
(b) Tighten the fuel tank cap firmly (only one click sound is heard).
HINT:
If an EVAP tester is available, check the fuel tank cap using the tester.
Remove the fuel tank cap and install it to a fuel tank cap adapter.
1.
Connect an EVAP tester pump hose to the adapter, and pressurize the fuel tank cap to between 3.2 and 3.7
kPa (24 and 28 mmHg) using an EVAP tester pump.
2.
Seal the adapter and wait for 2 minutes.
3.
Check the pressure. If the pressure is 2 kPa (15 mmHg) or higher, the fuel tank cap is normal.
4.
Result
TEST RESULT
SUSPECTED TROUBLE AREA
PROCEED TO
Fuel tank cap correctly installed
-
A
Fuel tank cap loose
Fuel tank cap improperly installed
Defective fuel tank cap
Fuel tank cap does not meet OEM specifications
B
Defective fuel tank cap
-
B
No fuel tank cap
-
C
A
GO TO STEP 37
B
GO TO STEP 35
C
GO TO STEP 36
21.
INSPECT PURGE VSV
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
(a) Turn the ignition switch off.
(b) Disconnect the purge VSV connector.
(c) Disconnect the hose (connected to the canister) from the purge
VSV.
(d) Start the engine.
(e) Use your finger to confirm that the purge VSV has no suction.
Result
TEST RESULT
SUSPECTED TROUBLE AREA
PROCEED
TO
No suction
Wire harness or connector between purge VSV and ECM (short to
ground)
ECM
A
Suction
applied
Purge VSV
B
Text in Illustration
*1
Purge VSV
*2
Hose (to Canister)
*3
Connector
A
GO TO STEP 26
B
GO TO STEP 39
22.
INSPECT EVAP HOSE (PURGE VSV - CANISTER)
(a) Check for blockages in the EVAP purge line between the purge VSV and canister.
OK:
No blockages in the EVAP purge line between the purge VSV and canister.
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
OK
NG
GO TO STEP 44
23.
CHECK EVAP HOSE (PURGE VSV - INTAKE MANIFOLD)
(a) Disconnect the hose (connected to the intake manifold) from the
purge VSV.
(b) Start the engine.
(c) Use your finger to confirm that the hose has suction.
Result
TEST RESULT
SUSPECTED TROUBLE AREA
PROCEED TO
Suction applied
EVAP hose between purge VSV and intake manifold normal
Purge VSV
Purge VSV power source
Wire harness or connector between purge VSV and ECM
A
No suction
Intake manifold port
EVAP hose between purge VSV and intake manifold
B
Text in Illustration
*1
Purge VSV
*2
Hose (to Intake Manifold)
B
GO TO STEP 34
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
A
A
24.
INSPECT PURGE VSV
(a) Remove the purge VSV.
Result
TEST
RESULT
CONDITION
SUSPECTED TROUBLE AREA
PROCEED
TO
Air flows
Battery voltage is
applied to purge
VSV terminals
Purge VSV normal
Purge VSV power
source
Wire harness or
connector between
purge VSV and
ECM
A
No air
flow
Battery voltage is
applied to purge
VSV terminals
Purge VSV
B
Text in Illustration
*1
Purge VSV
*2
Port A
*3
Port B
B
GO TO STEP 39
25.
CHECK HARNESS AND CONNECTOR (POWER SOURCE OF PURGE VSV)
1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: EVAP System;...
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