Emission Control System (2ZR-FE): Canister: Inspection

INSPECT CHARCOAL CANISTER ASSEMBLY
1. Visually check the charcoal canister for cracks or damage.
  If cracks or damage are found, replace the charcoal canister assembly.
  
  Fig 1: Inspecting Charcoal Canister Assembly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the 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.
    
    Fig 2: Checking Charcoal Canister Operation - With Purge Port Closed
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  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
3. Check for air leak.
  1. Remove the air hose between ports A and B.
  2. Connect the pressure gauge to the vent port of the charcoal canister.
    
    Fig 3: Checking Charcoal Canister Operation - With Vent Port Closed
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  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.
    SST 09992-00242
    
    If the result is not as specified, replace the charcoal canister assembly.
    
    Fig 4: Checking For Air Leak - While Holding Port B, With Purge Port And Air Inlet Port Closed
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002