Difference between revisions of "16485/P0101/000257"
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* 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) | * 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) | ||
| + | * It is not uncommon for a TDI to set Implausible Signal Mass Air Flow Sensor (G70) faults when the engine performance is reduced due to a mechanical problem. These mechanical problems may include, ''but are not limited to'': | ||
| + | ** Faulty electric fuel pump or Restricted fuel filter. See the [[Fuel Pump Basic Settings for PD, PPD, and CR TDI Engines]] page for Basic Settings tips after replacement. | ||
| + | ** Excessive restrictions in the intake/exhaust system | ||
| + | ** Internal camshaft/valve/lifter problems | ||
| + | |||
[[Category:Fault Codes]] | [[Category:Fault Codes]] | ||
Revision as of 17:01, 15 May 2012
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)
- It is not uncommon for a TDI to set Implausible Signal Mass Air Flow Sensor (G70) faults when the engine performance is reduced due to a mechanical problem. These mechanical problems may include, but are not limited to:
- Faulty electric fuel pump or Restricted fuel filter. See the Fuel Pump Basic Settings for PD, PPD, and CR TDI Engines page for Basic Settings tips after replacement.
- Excessive restrictions in the intake/exhaust system
- Internal camshaft/valve/lifter problems