| 摘要 |
A canister vent solenoid valve (6) is inserted into an insertion port (303) of a canister (2), and an air pump (7) is inserted into an insertion port (305) of the canister (2) in order to diagnose a leakage of an evaporated fuel processing pipeline (5). As the canister vent solenoid valve (6) and the air pump (7) can be individually inserted into the canister (2), this system for diagnosing a leakage of the evaporated fuel processing pipeline (5) can be installed using less space than when a module in which the canister vent solenoid valve (6) and the air pump (7) are integrated is inserted, and can take a configuration that can be used for the leakage diagnosis method to be adopted without modifying the canister (2). |
