Emission Control System: Canister: Inspection

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

Fig 1: Locating Charcoal Canister Assembly

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1. With the purge port closed, blow 1.67 kPa (17.0 gf/cm² , 0.24 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.
   Fig 2: Checking Charcoal Canister Operation

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2. With the vent port closed, blow 1.10 kPa (11.2 gf/cm² , 0.16 psi) of air to 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.
   Fig 3: Checking Purge Port

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1. Remove the air hose between ports A and B.
2. Connect SST (pressure gauge) to the vent port of the charcoal canister.

   SST 09992-00242 

3. While holding port B, with the purge port and the air inlet port closed and port A open, 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.

   Fig 4: Checking Air Leakage

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1. Remove the detection pump from the charcoal canister.
2. Check that air flows from port A to B and then C.

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

   Fig 5: Checking Leak Detection Pump Air Flow

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3. Connect the positive (+) lead 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.
   Fig 6: Locating Valve

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