Visual Inspection
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1990 Mazda RX-7, 1990 Mazda Protege, 1990 Mazda MX-6, 1990 Mazda MX-5 Miata, and 1990 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
Visually inspect all electrical wiring, looking for chafed, stretched, cut or pinched wiring. Ensure electrical connectors fit tightly and are not corroded. Ensure vacuum hoses are properly routed and are not pinched or cut. See VACUUM DIAGRAMS article to verify routing and connections (if necessary). Inspect air induction system for possible vacuum leaks.