1.4 TSI engine (EA211) · Mixture preparation – injection · Senders and sensors
Checking fuel pressure sender - G247-
⇒ 5.2.2 Checking fuel pressure sender G247, using vehicle diagnostic tester
5.2.1 Checking fuel pressure sender - G247-, using pressure sensor tester - VAS 6394- and vehicle diagnostic tester
Special tools and workshop equipment required
- ⇒ Vehicle diagnostic tester
- Pressure sensor tester - VAS 6394-
- Test instrument adapter/DSO (3-pin) - VAS 5570-
- Socket 27 mm long, commercially available
Procedure
- Remove fuel pressure sender - G247- ⇒ 5.1 Removing and installing fuel pressure sender G247 .
- Lubricate taper seal of adapter -VAS 6394/3- with clean engine oil and screw into fuel rail (22 Nm).
- Unscrew plug -2- and screw fuel pressure sender - G247- into tester -VAS 6394/1-.
- Connect pressure line -1- of tester to adapter - VAS 6394/3-.
- Connect vehicle and fuel pressure sender - G247- electrically using test instrument adapter/DSO (3-pin) - VAS 5570-.
- Switch on tester -VAS 6394/1- by pressing button -A- once briefly.
- Connect ⇒ Vehicle diagnostic tester.
- Start engine and run it at idling speed.
- Select 0001 - Read measured values in self-diagnosis.
- Select Fuel pressure from the list.
- Compare pressure displayed on tester -VAS 6394/1- with actual value displayed on ⇒ Vehicle diagnostic tester.
- Watch the fuel pressure on the vehicle diagnostic tester.
- A maximum pressure deviation of 5 bar is permissible.
- If the deviation is greater than 5 bar, renew fuel pressure sender - G247-.
- Repeat test with new fuel pressure sender - G247- and compare both measured values.
- 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.
Torque settings
5.2.2 Checking fuel pressure sender - G247-, using vehicle diagnostic tester
Special tools and workshop equipment required
- Pressure gauge - VAS 6550-
- ⇒ Vehicle diagnostic tester
Condition:
- 1/4 of fuel tank filled with fuel.
- Pull off supply line -1-. Separate plug-in connectors ⇒ Fuel supply system - petrol engines; Rep. gr. 20; Plug-in connectors; Separating plug-in connectors.
- Collect escaping fuel with a cleaning cloth.
- Connect hose - VAS 6550/1- to connection -A- of pressure tester - VAS 6550-.
- Connect hose - VAS 6550/1- to fuel supply line -1- leading to engine.
- Connect hose - VAS 6550/2- to connection -B- of pressure tester - VAS 6550-.
- Use hose - VAS 6550- to connect fuel line leading to fuel tank with pressure tester - VAS 6550/2-.
- Ensure plug-in connectors are secure properly by pulling.
- Ensure that drain tap -C- on pressure tester -1- is closed.
- Shut-off valves -A- and -B- on pressure tester -1- are open.
- Use ⇒ Vehicle diagnostic tester to check fuel pressure sender
- G247-. To do this, select following function:
- Diagnosis-compatible systems
- 0001 - Engine electronics
- 0001 - Repair groups
- 24 Mixture preparation/injection
- G247 - Check fuel pressure sender