16485/P0101/000257: Difference between revisions

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==== Possible Symptoms ====
==== Possible Symptoms ====


* Probably no serious malfunctions
* Loss of Power
* Loss of power
* Erratic Idle


==== Possible Causes ====
==== Possible Causes ====


* Wiring and/or connections (short circuit?)
* Mass Air Flow Sensor (G70) faulty
* Leaks after G70
* Air Leak(s) after Mass Air Flow Sensor (G70)
* Mass Air Flow (MAF) (G70) defective
* Intake Air Filter dirty/faulty
* Ground Spots corroded or Paint Residue
* Wiring and/or Connections from/to Mass Air Flow Sensor (G70) faulty


==== Possible Solutions ====
==== Possible Solutions ====


* Check wiring and connections
* Check Intake Air Filter
* Check / Replace Mass Air Flow (MAF) (G70)
* Check Mass Air Flow Sensor (G70)
* Check Ground Spots
* Check Wiring and/or Connections from/to Mass Air Flow Sensor (G70)


==== Special Notes ====
==== Special Notes ====

Revision as of 13:36, 13 May 2007

16485/P0101/000257 - Mass Air Flow Sensor (G70): Implausible Signal

Possible Symptoms

  • Loss of Power
  • Erratic Idle

Possible Causes

  • Mass Air Flow Sensor (G70) faulty
  • Air Leak(s) after Mass Air Flow Sensor (G70)
  • Intake Air Filter dirty/faulty
  • Ground Spots corroded or Paint Residue
  • Wiring and/or Connections from/to Mass Air Flow Sensor (G70) faulty

Possible Solutions

  • Check Intake Air Filter
  • Check Mass Air Flow Sensor (G70)
  • Check Ground Spots
  • Check Wiring and/or Connections from/to Mass Air Flow Sensor (G70)

Special Notes

  • In MY 1995-2002 (?) in Europe at VW-diesel-cars G70 had the bad reputation of slowly losing his performance, causing loss of power. It's not a matter of defective or breaking down, but it is filthy / dirty (not easy to clean). You can check functionality by making a log in [01-engine], [meas.blocks-08], group 003 (3e gear, full throttle, from 1700-4000rpm)