Jetta V6-2.8L (BDF) (2002)
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -8- for function "Read measured value (data) block" and confirm entry with -Q- button.
Indicated on display:
Read measured value block
Input display group number XXX
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Press buttons -0-, -0- and -2- for "Display group number 2" and confirm entry with -Q- button.
Indicated on display: (1...4 = display zones)
Read measured value block 2
->
1
2
3
4
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Check the mass of air drawn in, in display zone 4
Specification: 3.0 to 5.0 g/s
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Press the -> button.
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Press buttons -0- and -6- for function "End output" and confirm entry with the -Q- button.
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Switch off ignition.
If the specification is achieved but an Mass Air Flow (MAF) related Diagnostic Trouble Code (DTC) is registered in Diagnostic Trouble Code (DTC)
memory:
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Check voltage supply for Mass Air Flow (MAF) sensor -G70-.
See:
If the specification is not obtained:
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Check the signal and ground (GND) wires for Mass Air Flow (MAF) sensor -G70-.
See:
Checking voltage supply for Mass Air Flow (MAF) sensor
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Pull 5-pin connector off Mass Air Flow (MAF) sensor -G70- with Intake Air Temperature (IAT) sensor -G42- -arrow-.
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Connect multimeter to measure voltage at connector terminal 2 and engine ground (GND).
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Start engine and run at idle speed.
Specification: 11.0 to 15.0 V
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Switch off ignition.
If no voltage is present:
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Check wire for open circuit between 5-pin connector terminal 2 and Fuel Pump (FP) -J17- referring to Electrical Wiring Diagrams.
Wire resistance: max. 1.5 ohms