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Home >> Mazda >> 1985 >> GLC Base >> Repair and Diagnosis >> Engine Performance >> System >> Feedback Carburetor System >> Testing >> Idle-Up System >> System Check

System Check

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  1. Warm engine to operating temperature and run at idle. Turn A/C on, and verify that servo diaphragm stem is raised.
  2. The servo diaphragm is activated when A/C is on and engine speed is 1400-1900 RPM.
  3. Turn A/C off.
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