Evaporative Emission Control Canister: Testing and Inspection

2ZR-FXE EMISSION CONTROL: CANISTER: INSPECTION

1. INSPECT CHARCOAL CANISTER ASSEMBLY

(a) Visually check the charcoal canister assembly.

(1) Visually check the charcoal canister assembly for cracks or damage.





If cracks or damage are found, replace the charcoal canister assembly.

(b) Check canister operation.

(1) With port C closed, blow 5 kPa (0.1 kgf/cm2, 0.7 psi) of air into port A, and check that air flows from port B.





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

(2) With port A closed, blow 5 kPa (0.1 kgf/cm2, 0.7 psi) of air into port B, and check that air flows from port C.





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

(c) Check for air leaks.

(1) Connect a pressure gauge to port A of the charcoal canister assembly.





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(2) With port C and port B closed, apply 20 kPa (150 mmHg, 5.91 in.Hg) of pressurized air into port A, then confirm that pressure is retained for 1 minute.

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

2. INSPECT CHARCOAL CANISTER WITH BRACKET ASSEMBLY

(a) Visually check the charcoal canister with bracket assembly.

(1) Visually check the charcoal canister with bracket assembly for cracks or damage.





If cracks or damage are found, replace the charcoal canister with bracket assembly.

(b) Check canister operation.

(1) Blow 5 kPa (0.1 kgf/cm2, 0.7 psi) of air into port A, and check that air flows from port B.





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

(c) Check for air leaks.

(1) Connect a pressure gauge to port A of the charcoal canister with bracket assembly.





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(2) With port B closed, apply 20 kPa (150 mmHg, 5.91 in.Hg) of pressurized air into port A, then confirm that pressure is retained for 1 minute.

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

(d) Check the leak detection pump.

(1) Connect a positive (+) lead from the auxiliary battery to terminal 5 and a negative (-) lead to terminal 1.





(2) Check that a clicking sound is heard from the leak detection pump.

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