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Home >> Mazda >> 1979 >> B2000 Base >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Auxiliary Emission Control Systems >> Exhaust Emissions System - Exhaust Gas RECIRCULATION >> Testing >> Vacuum Amplifier >> GLC, B1800, B2000 & 808 (1600 cc)

GLC, B1800, B2000 & 808 (1600 cc)

  1. Remove air cleaner and disconnect vacuum line (to vacuum amplifier) from three-way solenoid valve. Connect a vacuum gauge to vacuum line. Run engine at idle and disconnect vacuum line at carburetor.
  2. Gauge reading should be about 2 in. Hg. Reconnect vacuum line to carburetor. Slowly increase engine speed to 3500 RPM and gauge should read 3.5 in. Hg. If vacuum amplifier does not operate properly, replace amplifier.
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