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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. Result RESULT CHART A : Go to step 28 B : Go to step 26 C : Go to step 27 14. INSPECT PURGE VSV a. Turn the ignition switch OFF. b. Disconnect the D30 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. Test Result Suspected Trouble Area Proceed To Fuel cap correctly installed - A Fuel cap loose Fuel cap improperly installed Defective fuel cap Fuel cap does not meet OEM specifications B Defective fuel cap - B No fuel cap - C
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra
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