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Checking intake manifold change-over > < Checking components

Golf Mk6

Checking fuel pressure senderG247
   
Checking fuel pressure sender -G247-
Special tools and workshop equipment required
t  Assembly tool -T10118-
t  Deep hexagon socket, 27 mm -VAS 5301/7-
t  Pressure sensor tester -VAS 6394/1-
t  Adapter -VAS 6394/2-
t  Test adapter -VAS 5570-
t  Torque wrench -V.A.G 1331-
t  Vehicle diagnosis tester

Procedure:
–  Remove engine cover panel → Chapter.
–  Remove fuel pressure sender -G247- → Chapter
   
–  Moisten tapered seal of adapter -VAS 6394/2- with clean engine oil and screw into fuel rail. Specified torque: 27 Nm.
  N24-10489
–  Unscrew plug -2- and screw fuel pressure sender -G247- into tester -VAS 6394/1-. Specified torque 27 Nm.
–  Connect pressure line of tester -VAS 6394/1- to adapter -VAS 6394/2-.
  N24-10400
–  Connect fuel pressure sender and electrical connector of fuel pressure sender with the aid of test adapter -VAS 5570-.
  N24-10488
–  Switch on tester -VAS 6394/1- to do this, press button -A- once briefly.
  Note
t  When button -A- is pressed for 2 seconds, the illumination will be switched on for 20 seconds.
t  If the digital pressure gauge -VAS 6394/1- reading is not 0 bar, carry out a zero calibration procedure → operating instructions.
–  Connect vehicle diagnosis tester to diagnostic connection.
–  Switch on ignition.
–  Press following buttons on display of diagnostic tester one after the other:
Vehicle self-diagnosis
Self-diagnosis►
01 - Engine electronics►
011 - Measured values►
–  Select measured value block 140 and confirm with Q.
The actual fuel pressure value is shown in display zone 3, measured by the fuel pressure sender -G247-.
–  Start engine.
–  Compare the displayed pressure of pressure tester -VAS 6394/1- with the displayed actual value on vehicle diagnosis tester.
l  A maximum pressure deviation of 5 bar is permissible.
–  If the deviation is greater than 5 bar, renew fuel pressure sender -G247-.
  WARNING
The tester -VAS 6394- is under extreme fuel pressure! With engine running, pull connector off fuel pressure sender -G247-. This reduces fuel pressure to approx. 6 bar. Switch off ignition. Place a cleaning cloth around fuel pressure sender -G247-, then reduce residual pressure by carefully loosening fuel pressure sender -G247-.
–  Repeat the test with the new fuel pressure sender -G247- and compare both measured values.
If measured values again fail to correspond:
–  Check wiring → Vehicle diagnostic tester.
  N24-10457

Checking intake manifold change-over > < Checking components