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Home >> Mazda >> 1987 >> 323 Base, 2D Hatchback >> Repair and Diagnosis >> Engine Performance >> System >> Fuel INJ - MPFI System >> Testing >> Electronic Control Unit >> 323

Electronic Control Unit: 323

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Connect voltmeter negative lead to ground. Turn ignition on and measure voltage at each ECU terminal. See CONTROL UNIT TESTING chart for voltage specifications and terminal locations.