porsche Workshop Repair Guides

Porsche Workshop Service and Repair Manuals

Fuel Pump Relay > < Connecting and Bleeding Pressure Gauge|Page 1363
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Fuel Pressure: Testing and Inspection
Checking System Pressure

Checking System Pressure 

1.  Turn selector valve to position 3 and switch the ignition on.

2.  The system's pressure must agree with specifications. If it deviates from specifications, correct position of pressure relief valve in fuel distributor

with shims.

System pressure 

Testing value ...........................................................................................................................................................  4.5 to 5.2 bar 
Adjusting value .......................................................................................................................................................  4.7 to 4.9 bar 

Fuel Pump Relay > < Connecting and Bleeding Pressure Gauge|Page 1363