System Inspection
WARNING: This page is about a different car, the 1997 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition on and verify injector operating sound is present while cranking engine. Turn ignition off. Depress accelerator pedal fully and turn ignition on. Verify injector operating sound is not present while cranking engine. If operating sound is present, check PCM terminal No. 89. See PIN VOLTAGE/PID VALUE CHARTS article.