Toyota 2GR-FE Manual page 582

ES–426
12
PERFORM ACTIVE TEST USING INTELLIGENT TESTER (PURGE VSV)
Purge VSV
ES
Result
No suction when purge VSV turned OFF, and suction
applied when turned ON
Suction applied when purge VSV turned OFF
No suction when purge VSV turned ON
A
13
CHECK FUEL CAP ASSEMBLY
Result
Fuel cap correctly installed
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
Hose (to Canister)
A136279E01
Test Results
Test Results
(a) On the intelligent tester, select the following menu items:
DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST /
EVAP VSV (ALONE).
(b) Disconnect the hose (connected to the canister) from the
purge VSV.
(c) Start the engine.
(d) Using the tester, turn off the purge VSV (EVAP VSV:
OFF).
(e) Use your finger to confirm that the purge VSV has no
suction.
(f) Using the tester, turn on the purge VSV (EVAP VSV:
ON).
(g) Use your finger to confirm that the purge VSV has
suction.
Suspected Trouble Areas
Purge VSV normal
Purge VSV stuck open
• Purge VSV stuck closed
• Problems with EVAP hose between purge VSV and
intake manifold
(h) Reconnect the hose.
B
Go to step 14
C
Go to step 15
(a) Check that the fuel cap is correctly installed and confirm
the fuel cap meets OEM specifications.
(b) Tighten the fuel cap until a few click sounds are heard.
HINT:
If an EVAP tester is available, check the fuel cap using
the tester.
1. Remove the fuel cap and install it onto a fuel cap
adapter.
2. Connect an EVAP tester pump hose to the adapter,
and pressurize the cap to 3.2 to 3.7 kPa (24 to 28
mmHg) using an EVAP tester pump.
3. Seal the adapter and wait for 2 minutes.
4. Check the pressure. If the pressure is 2 kPa (15
mmHg) or more, the fuel cap is normal.
Suspected Trouble Areas
-
Proceed to
A
B
C
Proceed to
A