Should I Disable Afm?

Disabling the Active Fuel Management (AFM) system is the most effective method for avoiding expensive repairs. Not only is it an excellent preventative precaution, but it also improves the sound of your vehicle’s exhaust and maintains it permanently in V8 mode.

AFM is an engine technology that allows your vehicle to operate with four cylinders rather than eight. This helps to improve fuel efficiency, but it also puts extra strain on the engine and can cause difficulties over time. Therefore, disabling it can be an excellent strategy to limit the chance of damage and costly repairs.

Deactivating the AFM system might also improve the exhaust note. Without AFM, your vehicle would constantly operate in V8 mode, producing a significantly louder sound. This is particularly visible when accelerating.

To disable the AFM system, you’ll need to visit a mechanic or a skilled specialist. Depending on the make and model of your vehicle, upgrades may require access to the engine. However, it should be noted that disabling the AFM system is typically a simple task.

In conclusion, disabling or removing the AFM system is an excellent method to save costly repairs and improve the exhaust sound of your vehicle. It is a simple and economical solution to keep your car in V8 mode and ensure that it operates smoothly.


Cars were and will be my first love and favorite hobby; I decided to start writing about my discoveries and techniques to improve my cars or repair them.