* Your owner's manual: It should provide detailed information about your vehicle's engine and components.
* Online automotive forums and resources: Search for forums dedicated to the Mazda MAZDA3, where owners often discuss engine specifications.
* A reliable automotive repair manual: These manuals contain detailed information about specific car models, including engine details.
* Contact a Mazda dealership or mechanic: They will have access to the most up-to-date information about your vehicle's specifications.
Please note that the cam type might vary depending on the engine size and trim level of your 2009 Mazda MAZDA3.