Section 16 (Emission Control): Canister: Inspection

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT CHARCOAL CANISTER ASSEMBLY
1. Visually check the charcoal canister for cracks or damage.
  If cracks or damage are found, replace the charcoal canister.
  
  Fig 1: Checking Charcoal Canister Assembly For Leakage
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check canister operation.
  1. With the purge port closed, blow 1.80 kPa (0.018 kgf/cm² , 0.261 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.
    
    Fig 2: Checking Air Flows From Air Inlet Port
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. With the vent port closed, blow 1.10 kPa (0.011 kgf/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.
  Fig 3: Checking Air Flows From Purge Port
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check for air leaks.
  1. Remove the air hose between ports A and B.
  2. Connect the SST (pressure gauge) to the vent port of the charcoal canister.
    SST 09992-00242
    
    Fig 4: Connecting SST To Vent Port Of Charcoal Canister
    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
  If the result is not as specified, replace the charcoal canister.