daihatsu Workshop Repair Guides

Daihatsu Workshop Service and Repair Manuals

Bimetal Vacuum Switching Valve (BVSV) <--> [Thermal Vacuum Valve - EVAP] > < Evaporative Emission Control Canister|Description and Operation|Page 1153
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Evaporative Emission Control Canister: Testing and Inspection

Fig. 6 Cleaning Charcoal Canister

1.

Disconnect vacuum hoses and remove charcoal canister.

2.

Visually inspect canister case for cracks or damage.

3.

Check for filter restriction as follows:
a. Blow low compressed air into the tank pipe. Ensure that air flows without resistance from other pipe.
b. Blow low compressed air into purge pipe. Ensure that no air flows from other pipe. No activated charcoal should come out during the

cleaning procedure.

4.

Clean charcoal canister by blowing compressed air (43 psi) into the tank pipe while holding the other upper canister pipe closed, Fig. 6. Do not
attempt to wash the canister. No activated charcoal should come out during the cleaning procedure.

5.

Install the charcoal canister and connect vacuum hoses.

Bimetal Vacuum Switching Valve (BVSV) <--> [Thermal Vacuum Valve - EVAP] > < Evaporative Emission Control Canister|Description and Operation|Page 1153