Visual Check
WARNING: This page is about a different car, the 1996 Mazda B4000, 1996 Mazda B3000, and 1996 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
Complete all steps in BASIC TESTING article before proceeding to self-diagnostic tests. Ensure vacuum hoses and OBD-II wiring harnesses are properly connected.