Checking residual pressure
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Checking residual pressure
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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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Ensure good ventilation! If there is approved ventilation for extraction of fuel fumes then this must be used.
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Wear protective gloves! Prolonged exposure of the hands to fuel can cause irritation of the skin.
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Have a fire extinguisher class BE at hand! Be aware of the risk for sparks, i.e. in connection with circuit breaking, short-circuiting, etc.
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Absolutely no smoking!
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Use protective goggles.
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1.
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Remove the upper engine cover.
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3.
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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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4.
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Take a reading on the pressure gauge equipment.
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5.
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"Safety on" the adapter and remove the pressure measuring equipment from the service nipple. Wipe up any fuel spill with a rag.
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6.
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Replace the upper engine cover.
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