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Hot Idle COMPENSATOR: Testing: Corolla

  1. Remove HIC valve from air cleaner. Close atmospheric port with finger and blow through heated air cleaner tube. Air should come out intake manifold port.
  2. Heat valve in hot water. DO NOT allow water inside valve. Close intake manifold pipe with finger and blow through heated air cleaner tube. A small amount of air should flow when valve is between 80-149°F (32-65°C). A large amount of air should flow when valve is above 185°F (85°C).
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