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Home >> Mazda >> 1985 >> RX-7 S >> Repair and Diagnosis >> Engine Performance >> System >> Deceleration Control System - CARBURETED >> Component Testing >> Shutter Solenoid Valve Signal Check
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Shutter Solenoid Valve Signal Check

  1. Warm engine to normal operating temperature and run at idle speed. Connect a tachometer to engine. Disconnect the connector from throttle sensor. Disconnect the air hose from the coasting valve to air cleaner at the air cleaner.
  2. Place a finger over the air hose opening and make sure the air is not sucked into the air hose at idling speed. Increase the engine speed more than 3000 RPM and then decrease rapidly. Make sure the air is sucked into the air hose until the engine speed decreases to 1000-1200 RPM.
  3. On automatic transmissions, shift into "P" or "N". Current should NOT flow to solenoid valve terminal at any engine speed. If solenoid valve does not respond as described, replace shutter solenoid valve.
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