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Home >> Porsche >> 2016 >> Cayman GTS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (20 - Fuel Supply, Control) >> WM 200201 Checking Fuel Pressure (Low Pressure) On DFI Engines >> Tools And Materials >> Tools For Checking Fuel Pressure And Fuel Delivery Rate

Tools For Checking Fuel Pressure And Fuel Delivery Rate

WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Testing And Measuring Tools For Fuel Pressure And Fuel Delivery Rate
G09409772Courtesy of PORSCHE CARS NORTH AMERICA, INC.
  1. Measuring adapter 9705  ; with rapid-action coupling => used for checking the fuel delivery rate. Generates the required counter-pressure of 2.5 bar.
  2. Pressure gauge with stopcock tester K-Jetronic Tester V.A.G. 1318 WE 1291 
  3. Connecting line connection line 9705/3  ("female" rapid-action coupling)
  4. Adapter 1318/7 from K-Jetronic Tester V.A.G. 1318 WE 1291 
  5. Adapter 1318/15 (one-piece connecting piece); accessory for K-Jetronic Tester V.A.G. 1318 WE 1291;  => used for checking the fuel delivery pressure.
  6. Connecting line connection line 9705/3  ("male" rapid-action coupling) => used for checking the fuel delivery pressure.
  7. Adapter 1318/17 (A) from K-Jetronic Tester V.A.G. 1318 WE 1291  ; connection to measuring adapter 9705  => used for checking the fuel delivery rate.
  1. Adapting adapter 9479 => 
    1. 1.1. The adapter 9479 -2-  must be adapted to suit the slots on terminal 30 and 87 of the fuel pump relay using two short auxiliary lines -1-  . The auxiliary lines are shop-made or lines from a suitable measuring equipment range can be used.
      Fig 2: Identifying Adapter Auxiliary Cable
      G09409773Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    2. 1.2. Disconnect the fuel pump relays for both fuel pumps in the central electrical system. Instead of the contacts on terminal 30 and 87 of the relay, use the two contacts on the auxiliary lines to activate the fuel pump (left or right).
      Fig 3: Identifying Terminals 30 And 87
      G09409774Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    3. 1.3. Select the correct slots for the left or right fuel pump. -1 und 2- 
      Fig 4: Identifying Fuel Pump Relays Slots
      G09409775Courtesy of PORSCHE CARS NORTH AMERICA, INC.
    4. 1.4. Adapter 9479  must be inserted at the contacts using auxiliary lines. The left or right fuel pump in the tank can now be activated, depending on the slot.
      Fig 5: Identifying Adapter
      G09409776Courtesy of PORSCHE CARS NORTH AMERICA, INC.
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