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Clutch Switch, ECM > < Diagnostic Trouble Code Tests and Associated Procedures|Page 1894

D21 Hardbody 2WD L4-2389cc 2.4L SOHC MFI (KA24E) (1990)

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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.

Clutch Switch, ECM > < Diagnostic Trouble Code Tests and Associated Procedures|Page 1894