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  1. CruiserTrash

    FJ60 Air cleaner assembly - diaphragm

    @stoshzack after sleeping on this thread, I figured I should come back around to say … I don’t think any of those valves work any more. I haven’t found one anyway. A while back I started a whole thread about how either Toyota diagrammed the valve wrong in the FSM or it was never meant to work as...
  2. CruiserTrash

    FJ60 Air cleaner assembly - diaphragm

    In addition to controlling the Hot Air Intake (HAI) system, that valve also regulates the Hot Idle Compensation (HIC) system. You’ll see a hose running to a tee on the PCV line just above the PCV valve itself. It allows cooler fresh air into the intake below the carb in order to “cool off” the...
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