Will the Malfunction Indicator Light Illuminate if the Charcoal Canister Solenoid Valve Fails?

[DeLola]

The malfunction indicator light will illuminate if the charcoal canister solenoid valve fails. The primary function of the charcoal canister is to adsorb and filter fuel vapors from the fuel tank. The solenoid valve controls the entry of these fuel vapors into the engine for combustion, thereby reducing fuel consumption and preventing excessive pressure in the fuel tank. Symptoms of a faulty charcoal canister solenoid valve include: 1. Abnormal noises while driving; 2. Jerking during acceleration and a noticeable gasoline odor inside the vehicle; 3. Irregular idle speed fluctuations after engine startup, accompanied by poor acceleration. In such cases, it is important to check whether the issue is caused by a blockage in the air inlet or filter of the charcoal canister.