1-2-20 CHARCOAL CANISTER CHECK
(1) RHD vehicles
1.Check the charcoal canister for damage, such as dents.
2.With a MityVac connected, carry out continuity check and
airtightness check for the check valve.
(1) Continuity check of tank port!atmosphere port
Apply a positive pressure of 5.9kPa (0.05 kgf/cm
2
) to
the tank port with the purge port plugged (e.g. with
your fingers).
SPECIFIED VALUE: Air continuity exists between the
tank port and the atmosphere port.
(2) Continuity check of atmosphere port!tank port
Apply a negative pressure of 2.9kPa (0.03 kgf/cm
2
) to
the tank port with the purge port plugged (e.g. with
your fingers).
SPECIFIED VALUE: Air continuity exists between the
atmosphere port and the tank port.
(3) Continuity check of atmosphere port!purge port
Apply a positive or negative pressure of 1kPa (0.01
kgf/cm
2
) to the purge port with the tank port plugged
(e.g. with your fingers) to allow air to flow.
SPECIFIED VALUE: There is no rise in the pressure.
(2) LHD vehicles
1.Check the charcoal canister for damage, such as dents.
2.With a MityVac connected, carry out continuity check and
airtightness check for the check valve.
(1) Continuity check of tank port!atmosphere port
Apply a positive pressure of 5.9kPa (0.05 kgf/cm
2
) to
the tank port with the purge port plugged (e.g. with
your fingers).
SPECIFIED VALUE: Air continuity exists between the
tank port and the atmosphere port.
(2) Continuity check of atmosphere port!tank port
Apply a negative pressure of 2.9kPa (0.03 kgf/cm
2
) to
the tank port with the purge port plugged (e.g. with
your fingers).
SPECIFIED VALUE: Air continuity exists between the
atmosphere port and the tank port.
(3) Continuity check of atmosphere port!purge port
Apply a positive or negative pressure of 1kPa (0.01
kgf/cm
2
) to the purge port with the tank port plugged
(e.g. with your fingers) to allow air to flow.
SPECIFIED VALUE: There is no rise in the pressure.
1-2-21 DAMAGE CHECK OF PIPINGS OF FUEL EVAPORATIVE EMISSION CONTROL SYSTEM
1.Check the hoses and pipes for damage.
B1–14