Where is mass air flow sensor located on a 2006 ford focus zx4?

The mass air flow (MAF) sensor on a 2006 Ford Focus ZX4 is typically located between the air filter and the throttle body in the intake duct. It is usually housed in a plastic or metal housing and connected with wiring harnesses. To access it, you may need to remove the air intake ducting. Always ensure the engine is off and cool before attempting any work on the vehicle.