| 摘要 |
An evaporative fuel vapor control system, purge valve and methods are described. The system includes a fuel supply, internal combustion engine, vapor canister, a bypass passage, and a purge valve. The bypass passage includes a sensor disposed in the bypass passage and in communication with the flow passage to provide a signal indicative of the magnitude of chemicals in the fuel vapor being provided to the engine. Various methodologies relating the system, purge valve and sensors are described.
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