Evaporative Emission Control Canister: Testing and Inspection

2AZ-FXE EMISSION CONTROL: CANISTER: INSPECTION

INSPECTION

1. INSPECT CHARCOAL CANISTER ASSEMBLY





(a) Visually check the charcoal canister for cracks or damage.
If cracks or damage are found, replace the charcoal canister assembly.
(b) Check charcoal canister operation.




(1) With the purge port closed, blow 1.10 kPa (11.2 gf/cm2, 0.16 psi) of air into the vent port, and check that air flows from the air inlet port.
If the result is not as specified, replace the charcoal canister assembly.




(2) With the vent port closed, blow 1.10 kPa (11.2 gf/cm2, 0.16 psi) of air into the air inlet port, and check that air flows from the purge port.
If the result is not as specified, replace the charcoal canister assembly.
(c) Check for air leakage.




(1) With the purge port and air inlet port closed, apply 19.6 kPa (0.2 kgf/cm2, 2.81 psi) of pressurized air into the vent port, then confirm that pressure is retained for 1 minute.
If the result is not as specified, replace the charcoal canister assembly.
(d) Check the leak detection pump.




(1) Remove the 3 bolts and the detection pump from the charcoal canister.
(2) Check that air flows from port A to B.
NOTICE:
- Do not damage the O-ring
- Be careful that the foreign matter does not come in the pump.

If the result is not as specified, replace the charcoal canister assembly.




(3) Connect the positive (+) lead of the battery to terminal 7 and the negative (-) lead to terminal 6.
(4) Check that the valve is closed.
If the result is not as specified, replace the charcoal canister assembly.
(5) Install the detection pump with the 3 bolts.
Torque: 5.4 Nm (55 kgf-cm, 48in-lbf)