INSPECTION
PROCEDURE
1. INSPECT CHARCOAL CANISTER ASSEMBLY
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(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. |
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(b) Check charcoal canister assembly operation.
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*a |
Vent Port |
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*b |
Air Inlet Port |
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*c |
Purge Port |
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*d |
Air |
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*e |
Leak Detection Pump Sub-assembly Connector |
(1) With the purge port and leak detection pump sub-assembly connector closed, blow 5 kPa (0.05 kgf/cm2, 0.7 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.
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(2) With the vent port and leak detection pump sub-assembly connector closed, blow 5 kPa (0.05 kgf/cm2, 0.7 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. |
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(c) Check for air leaks. (1) Connect a pressure gauge to the vent port of the charcoal canister. (2) With the purge port, air inlet port and leak detection pump sub-assembly connector closed, apply 20 kPa (150 mmHg, 5.91 in.Hg) 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. |
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2. INSPECT CHARCOAL CANISTER LEAK DETECTION PUMP SUB-ASSEMBLY
(a) Check the charcoal canister leak detection pump sub-assembly.
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*a |
Port A |
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*b |
Port B |
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*c |
Air |
(1) Check that air flows from port A to port B.
If the result is not as specified, replace the charcoal canister leak detection pump sub-assembly.
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(2) Connect the positive (+) lead of the battery to terminal 5 and the negative (-) lead to terminal 1. |
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(3) Check that a clicking sound is heard from the leak detection pump sub-assembly.
If the result is not as specified, replace the charcoal canister leak detection pump sub-assembly.
