The 90-91 Honda Prelude OEM Fuel Vapor Evap Rail Solenoid Assembly is a genuine replacement part for the fuel vapor canister in your Honda Prelude. This assembly includes the Evap solenoid, ensuring proper function of the emission control systems. Designed specifically for Honda vehicles, this OEM part is reliable and efficient in maintaining the fuel vapor evaporation process. Please message any questions you may have. Check out our EBay store for many more parts. Thanks