Where is the knock sensor on 1996 Mazda Protege 1.5L?

The knock sensor on a 1996 Mazda Protege with a 1.5L engine is typically located on the engine block, near the cylinder head. It is usually positioned on the side of the engine, often towards the rear, and is secured with a bolt. You may need to remove some components for better access, but it can generally be identified by its round shape and electrical connector.