D21 Hardbody 2WD L4-2389cc 2.4L SOHC MFI (KA24E) (1990)
Air Flow Meter/Sensor: Component Tests and General Diagnostics
Mass Air Flow Sensor Test
Visually check hot wire for dust or breakage.
Perform MODE 3 (STORED CODES) TEST test and check for TROUBLE CODE 12 AIR FLOW METER.