Evaporative Emission System Leak Test

CAUTION: The evaporative emission system must not be pressurized to more than 3.48 kPa (14 in/H2O) or damage to the evaporative emission system may occur.

Connect the Evaporative Emission System Tester to the evaporative emission test port.
NOTE: The ignition system must be in the Key On Engine Off (KOEO) position.
Access Output Test Mode using NGS tester. Refer to OUTPUT TEST MODE PROCEDURE .
Select EVAPCV PID.
Select ALL OFF mode and press START to close the canister vent solenoid.
NOTE: Output Test Mode will default to its normal state after 10 minutes, after the vehicle is started or after cycling the key OFF then ON.
Follow the tester instruction:
- If the system passed leak test, no leak exists.
- If the system failed leak test, perform TEST 11: FUEL LINE PRESSURE / FUEL PRESSURE HOLD INSPECTION .
NOTE: The leak tester detects smaller leak than minimum requirement in the PCM. Drive cycle procedure should be final confirmation method.