Evaporative Emission Control Canister: Testing and Inspection
REMOVE CHARCOAL CANISTERa. Disconnect the [1][2][3]VSV connector and vapor pressure sensor connector.
b. Disconnect the 3 hoses from the charcoal canister.
c. Disconnect the vent line hose.
1. Push the connector deep inside.
2. Pinch portion A.
3. Pull out the connector.
d. Remove the 2 bolts and charcoal canister.
VISUALLY INSPECT CHARCOAL CANISTER
Look for cracks or damage.
INSPECT CHARCOAL CANISTER
a. Plug the vent port with the cap.
b. While holding the purge port closed, blow air (1.76 kPa, 18 gf/sq.cm, 0.26 psi) into the EVAP port and check that air flows from the air drain port.
c. While holding the purge port and the air drain port closed, blow air (1.76 kPa, 18 gf/sq.cm, 0.26 psi) into the EVAP port and check that air does not flow from the air inlet port.
d. Apply vacuum (3.43 kPa, 25.7 mmHg, 1.01 in.Hg) to the purge port, check that the vacuum does not decrease when the air in jet port is closed, and check that the vacuum decreases when the air inlet port is released.
e. While holding the air inlet port closed, apply vacuum (3.43 kPa, 25.7 mmHg, 1.01 in.Hg) to the EVAP port and check that air flows into the purge port.
If a problem is found, replace the charcoal canister.
f. Remove the hose and cap from vent port
REINSTALL CHARCOAL CANISTER