Checking residual pressure, 4-cyl.
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Checking residual pressure, 4-cyl.
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Warning
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Checking residual pressure involves partial dismantling of the car's fuel system. The following points must therefore be observed in connection with this work:
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Work only in a well-ventilated area. If approved equipment for the extraction of fuel vapour is available, be sure to use it.
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Wear suitable gloves. Prolonged contact with fuel can cause skin irritation or dermatitis.
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Keep a class BE fire extinguisher near at hand. Be mindful of the danger of sparks caused by short circuits and when connecting and disconnecting leads in electrical circuits.
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No smoking anywhere in the vicinity,
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Wear protective goggles.
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2.
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Run the pump with the diagnostic tool until the pressure gauge stops rising. Stop the pump. The residual pressure after 20 minutes must be min. 2.3 bar (33 psi).
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3.
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Take a reading on the pressure gauge equipment.
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4.
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Put the "safety" on the adapter and remove the pressure gauge equipment from the service nipple. Screw on the valve cap.
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