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Home >> Mazda >> 1983 >> B2200 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> EGR System - Gasoline >> Component Testing >> Engine Speed Switch >> Calif. Models
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Calif. Models

  1. Warm engine to normal operating temperature. Connect voltmeter to electrical connectors as shown in Fig 1 .
  2. Increase engine speed to 1500 RPM, then slowly decrease engine speed. Current should flow to circuit at 900-1000 RPM.
  3. Slowly increase engine speed and record speed at which current stops flowing to circuit. The difference between recorded engine speeds should be 50-120 RPM. If not, replace engine speed switch.
Fig 1: Engine Speed Switch Test Connections (Calif. Models)
G41332