What are the effects of water ingress in the tenth-generation Accord's carbon canister?
2 Answers
It adversely affects combustion. Here are the specific details: 1. Activated charcoal: The interior of the carbon canister contains activated charcoal, which functions to absorb gasoline vapors from the fuel tank. During vehicle operation, these vapors are drawn into the cylinders to participate in combustion, promoting energy efficiency and environmental protection. It also maintains balanced pressure within the fuel tank, preventing negative or positive pressure formation, thereby ensuring proper fuel pump operation. 2. Damage: The carbon canister solenoid valve acts as a gate between the activated charcoal canister and the intake manifold, controlling whether the collected fuel vapors can enter the combustion chamber via the intake manifold for combustion. If the vehicle's carbon canister is damaged, the adsorbed fuel vapors will directly dissipate into the air, resulting in a strong gasoline odor inside the vehicle or in its immediate surroundings.
I've been driving the tenth-generation Accord for several years. Last year during the rainy season, the charcoal canister got flooded, and I noticed the car became harder to start. Sometimes the engine would shake violently, as if it couldn't catch its breath. Water ingress can cause the adsorbent material inside the charcoal canister to fail, clogging the pipes and affecting the fuel vapor recovery system. As a result, not only does the fuel smell become pungent and emissions exceed standards, but fuel consumption also increased by about 10%. If left unrepaired for a long time, it could lead to sensor short circuits or valve jamming. Once, the engine stalled on the highway, which was quite scary. It's best to get it checked, cleaned, or replaced in time. I spent a little over 300 yuan to fix it. Normally, when washing the car, be careful not to let water flow hit the exhaust outlet to prevent this issue.
