LEMON Manuals: Even more car manuals for everyone
Home >> Porsche >> 2019 >> Cayenne Turbo >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (20 Fuel Supply, Actuator 3.0L -- 9YA - Cayenne (9YA)) >> WM, 200201 Checking Fuel Pressure >> Preliminary Work

Preliminary Work

WARNING: This page is about a different variant/trim than selected.
WARNING: Highly inflammable or explosive materials 
  • Danger of fire or explosion 
    • → Avoid contact with hot parts or sources of ignition.
    • → Use suction to remove ignitable vapours.
    • → Attach warning sign in a clearly visible position.
    • → Contain leaked media using non-flammable absorbent material and put it in a container designed for this purpose for disposal in accordance with local requirements.
    • → Secure collection containers/vessels to prevent them from tipping over.
WARNING: Caustic fluids 
  • Danger of chemical burns 
    • → Wear personal protective gear.
    • → Ensure that there is good ventilation.
    • → Avoid contact with caustic fluid.
    • → If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.

Information 

The battery voltage must not fall below 12.5 volts  during the fuel pressure check.

  1. Connect a battery charger.
  2. Attach or mount a warning sign in a clearly visible position on the vehicle.
    G15241107Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Example of a warning sign

  3. Relieve fuel pressure in the system.
    G15241108Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Fuse carrier A

    1. 3.1  Open cover on fuse carrier A -1-  in the engine compartment.
    2. 3.2  Pull out fuse for fuel pump - see wiring diagram for information.
    3. 3.3  Start the engine, wait until it stops and then re-insert the fuse.
  4. Connect test tools -1 and 2-  .
    G15241109Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Test tools on fuel low-pressure line

    1. 4.1  Place suitable aids for collecting emerging fuel underneath the fuel low-pressure line connection point.
    2. 4.2  Release and disconnect plug-in coupling for the fuel low-pressure line. Catch emerging fuel.
    3. 4.3  Close off line connection for the fuel low-pressure line at the engine side using a suitable stopper.
    4. 4.4  Connect pressure gauge -1-  from tool set > V.A.G 1318 - K-Jetronic pressure tester  to the fuel low-pressure line on the vehicle side with > V.A.G 1318 - K-Jetronic pressure tester-2-  .