Volkswagen Golf Service & Repair Manual: Checking fuel pressure sender -G247-
Special tools and workshop equipment
required |
Vehicle diagnostic tester |
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Pressure sensor tester -VAS 6394- |
Test instrument adapter/DSO (3-pin) -VAS 5570- |
Socket, 27 mm (commercially available) |
The fuel system is under high pressure.Risk of injury due to fuel which
may spurt out.Release high pressure.
Risk of functional impairment due to soiling
→ Chapter. |
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Remove fuel pressure sender - G247-
→ Chapter. |
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Lubricate taper seal of adapter -VAS 6394/3- with clean
engine oil and screw into fuel rail (22 Nm). |
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Unscrew plug -2- and screw fuel
pressure sender - G247- into tester -VAS 6394/1-. |
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Connect pressure line -1- of
tester to adapter -VAS 6394/3-. |
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Connect vehicle and fuel pressure sender - G247-
electrically using test instrument adapter/DSO (3-pin) -VAS
5570-. |
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Switch on tester -VAS 6394/1- by pressing button
-A- once briefly. |
Note
When button -A- is pressed for
2 seconds, the illumination is switched on for 20 seconds. |
If tester -VAS 6394/1- does not indicate 0 bar, zero the
tester
→ Operating instructions. |
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Connect vehicle diagnostic tester. |
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Start engine and run at idling speed. |
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Select “Engine electronics” in the self-diagnosis program. |
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Then, select “Measured values”. |
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Select “Fuel pressure” from the list. |
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Compare pressure displayed on tester -VAS 6394/1- with
actual value displayed on vehicle diagnostic tester. |
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Watch the fuel pressure on the vehicle diagnostic tester. |
A maximum pressure deviation of 5 bar is permissible. |
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If the deviation is greater than 5 bar, renew fuel pressure
sender - G247-. |
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Repeat test with new fuel pressure sender - G247- and
compare both measured values. |
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If measured values are now the same, install new fuel
pressure sender - G247-. |
– |
If measured values are not the same again, check electrical
connection between fuel pressure sender - G247- and engine
control unit -J623-
→ Current flow diagrams, Electrical fault finding and Fitting
locations. |
→ Chapter „Assembly overview - fuel rail with injectors“ |
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Special tools and workshop equipment
required
Assembly tool -T10118-
...
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1 -
Front passenger door exterior handle
With front passenger door exterior handle contact sensor -G416-.
Removing and installing
→ Chapter
With front passenger side aerial for entry and start system -R135-.
Removing ...
Checking high-pressure safety valve on air conditioner compressor
Checking
Function: protects refrigerant circuit against excessive
pressures.
–
Observe safety precautions
→ Chapter „Safety precautions when handling refrigerants“.
...
Knee airbags
Fig. 75 On the driver side: location of
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Fig. 76 Deployment zone of the knee airbag
First read and observe the introductory information
and safety warnings The knee airbag on the driver side is located in the
lower part of the dash panel . The airbag location is identi ...
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