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Home >> Mazda >> 1976 >> Cosmo Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Automatic Throttle Release System >> Testing >> Delay Valve & Vacuum Switch No. 2 >> California Models

California Models

  1. Disconnect No. 2 vacuum switch. Connect ohmmeter to both terminals on switch side. Start and run engine at idle, DO NOT use choke knob.
  2. Check for continuity at terminals after 20-60 seconds from starting engine. Continuity should not exist after specified time. If switch does not perform as specified, replace switch and repeat test procedure.
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