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Manual Description
When a stick is inserted, the valve should open, when removing I stick it should close. Connect a spare fuel hose, one side to fuel gauge retainer where the hose was removed and the other side to a fuel container. In this process the air passes through the hose connecting air inlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow through the valve. On vehicles with an excessively high blow-by, the valve does not meet the requirement. A strong vacuum should be felt immediately when a finger is placed over valve inlet.
These items are required by legal regulations to continuously monitor the system/ D component. Each diagnosis may require a long period of actual driving under various conditions. Actual upshift speeds will vary according to road conditions, the weather and individual driving habits.
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