Emission Control System (Service Information): Canister: Inspection: Inspection

INSPECT CANISTER
1. Visually check the canister for cracks or damage.
  
  Fig 1: Inspecting Canister
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If cracks or damage is found, replace the canister.
2. Check the canister operation.
  
  Fig 2: Checking Air Flows From Air Inlet Port
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. With the purge port closed, blow air at 1.10 kPa (11.2 kgf/cm² , 0.16 psi) into the vent port and check that air flows from the air inlet port.
    If the result is not as specified, replace the canister.
  2. With the vent port closed, blow air at 1.10 kPa (11.2 kgf/cm² , 0.16 psi) into the air inlet port and check that air flows from the purge port.
    
    Fig 3: Checking Air Flows From Purge Port
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    If the result is not as specified, replace the canister.
3. Check for air leakage.
  
  Fig 4: Checking Air Leakage
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. With the purge port and air inlet port closed, apply pressurized air at 19.6 kPa (0.2 kgf/cm² , 2.81 psi) into the vent port, and then confirm that pressure is retained for 1 minute.
    If the result is not as specified, replace the canister.
4. Check the leak detection pump.
  
  Fig 5: Checking Air Flow From Port A To B & Then To C
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Remove the detection pump from the charcoal canister.
  2. Check that air flows from port A to B and then to C.
    If the result is not as specified, replace the canister.
  3. Connect the positive (+) lead of the battery to terminal 7 and the negative (-) lead to terminal 6.
    
    Fig 6: Checking Leak Detection Pump
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. Check that the valve is closed.
    If the result is not as specified, replace the canister.
  5. Install the detection pump.