What happens if the carbon canister tubes are connected in reverse?
2 Answers
Connecting the carbon canister tubes in reverse can affect the engine. Here is an introduction about the engine: 1. Definition: Idle speed refers to the minimum speed at which the engine maintains stable operation without any load. During idle, the clutch pedal and throttle pedal are completely relaxed, and the transmission is in neutral. At this time, the engine only needs to overcome the internal friction resistance of its own components and the operating resistance of the accessories, without outputting power externally. 2. Reason: High idle speed is generally caused by excessive carbon deposits. Timely cleaning of the throttle valve and idle speed control motor can usually solve the problem.
If the charcoal canister hose is connected backwards, the car will definitely throw a tantrum. Once after I repaired the fuel tank and started the engine, it shook like a sieve with unstable idle speed and kept stalling. The reason was the charcoal canister was connected in the wrong direction - the fuel vapor that should return to the engine couldn't go back, instead excess vapor got trapped in the system. Not only did fuel consumption suddenly spike, but there was always a gasoline smell under the car. After a few days, the exhaust became unbearably smelly too. The mechanic said this could saturate and damage the charcoal canister with fuel, and might also harm the catalytic converter that cleans exhaust gases. The most troublesome part was the engine warning light staying on constantly, requiring a computer to clear the fault codes. If you notice something wrong, it's best to shut off the engine immediately. Unless you're absolutely sure about the hose positions, it's better not to touch this area yourself.
