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Home >> Mazda >> 1980 >> B2000 Base >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Deceleration Control System >> Testing & Adjustment >> Anti-AFTERBURN Valve

Anti-AFTERBURN Valve

  1. Disconnect air hose at air cleaner from anti-afterburn valve. Start engine and idle.
  2. Block off hose opening with finger. Engine RPM should NOT change. Cycle throttle to increase engine RPM and quickly release throttle.
  3. Suction should be felt at open end of anti-afterburn valve hose.
  4. If no suction is present, or excessive suction lasts for more than 3 seconds, replace valve.
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