Faulty Oxygen Sensor: The oxygen sensor plays a crucial role in regulating the air-fuel mixture in the engine. If the oxygen sensor is malfunctioning, it can affect the fuel-to-air ratio, leading to incomplete combustion and a sulfur smell from the exhaust.
Catalytic Converter Issues: The catalytic converter is responsible for converting harmful pollutants from the exhaust into less harmful substances. If the catalytic converter is damaged or clogged, it can cause the engine to run poorly and produce a rotten egg smell, which is a characteristic of sulfur compounds.
Fuel Issues: Using low-quality fuel or fuel that contains high levels of sulfur can also contribute to a sulfur smell and engine shaking.
Vacuum Leaks: Vacuum leaks can disrupt the proper air-fuel mixture in the engine, resulting in rough idling and engine shaking. Vacuum leaks can occur at various points in the intake system, such as loose or cracked hoses.
EGR Valve Problems: The EGR (Exhaust Gas Recirculation) valve is responsible for recirculating a portion of the exhaust gases back into the engine. If the EGR valve is faulty or stuck, it can cause the engine to shake and produce a sulfur smell.
To accurately identify the cause of the shaking and sulfur smell in your 2001 Honda CR-V, it's recommended to have a professional mechanic inspect the vehicle. They can perform a thorough diagnosis and recommend the appropriate repairs to resolve the issue.
