Genuine Honda Odyssey Vapor Canister

Honda Odyssey Vapor Canister Parts Questions & Answers

• Canister Assembly
  17011-SHJ-A01
  Q: What is the purpose and function of the Evaporative Emissions Control (EVAP) system,Canister Purge Valve, Fuel Pressure Sensor and Vapor Canister on Honda Odyssey?

  A: The Evaporative Emissions Control (EVAP) system is developed in order to avoid fuel system vapors which contain hydrocarbons which have not been burned from ever escaping into the atmosphere. On warm days, vapors at fuel tank raise pressure, and are sent through the fuel vapor vent valve and fuel vapor control valve into EVAP canister for several days until the car is next used. During certain conditions only the canister purge valve opens and lets the vapors be drawn into the intake manifold which comes together with the new air and is then burning the vapors in the combustion chambers. The EVAP canister is installed below the automobile in front of the fuel tank and also is made from activated carbon; it is also non serviceable. These are the canister filter, canister vent shut valve, two-way valve, by-pass solenoid valve and the fuel tank pressure sensor. The canister filter ensure that the dirty air is not gets into the system, and the canister vent shut valve ensures that new air gets into the canister during a purging exercise. The fuel tank pressure sensor checks on the pressure and transmits it to the PCM, the PCM also controls the two-way valve with a view of checking on the flow of the vapor and not allow excess vacuum. The use of the bypass solenoid valve is during leak checks to regulate the air supply to the system. Some of the signs of a faulty EVAP are fuel smell, rough idle, and cold drive, that are resulting from malfunctioning valves or broken hoses. The most effective way to identify when fuel vapour pressure is high is by removing the gas cap in a bid to listen for pressure reducing sounds. Replacement of individual components requires the removal of electrical connectors and vacuum connections, dismantling of the mounting bolts and making certain that the new components come with new O-rings.