need help with vag codes

Have a look in the stickies in the 8l section or have a look on Ross tech website hope this helps

16486/P0102/000258 - Mass Air Flow Sensor (MAF/G70): Signal too Low

Possible Symptoms
## Malfunction Indicator Light (MIL) ON
## Loss of Power

Possible Causes
## Wiring and/or Connector(s) from/to Mass Air Flow Sensor (MAF/G70) faulty
## Mass Air Flow Sensor (MAF/G70) faulty

Possible Solutions
## Check Wiring and/or Connector(s) from/to Mass Air Flow Sensor (MAF/G70)
## Check/Replace Mass Air Flow Sensor (MAF/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)





00515 - Camshaft Position (Hall) Sensor (G40)

00515 - Camshaft Position (Hall) Sensor (G40): No Signal

Possible Causes
## Wiring to Camshaft Position (Hall) Sensor (G40) faulty
## Camshaft Position (Hall) Sensor (G40) faulty

Possible Solutions
## Check Wiring to Camshaft Position (Hall) Sensor (G40)
## Check/Replace Camshaft Position (Hall) Sensor (G40)
## Check/Replace Engine Control Module

Special Notes
## Some older engines store this code as long as the engine is not running, if in doubt read fault codes with the engine running again.




00515 - Camshaft Position (Hall) Sensor (G40): Implausible Signal

Possible Causes
## Camshaft Timing Out of Specification
## Wiring to Camshaft Position (Hall) Sensor (G40) faulty
## Camshaft Position (Hall) Sensor (G40) faulty
## Engine Control Module faulty

Possible Solutions
## Check Camshaft Timing
## Check Wiring to Camshaft Position (Hall) Sensor (G40)
## Check/Replace Camshaft Position (Hall) Sensor (G40)
## Check/Replace Engine Control Module




00515 - Camshaft Position (Hall) Sensor (G40): Open or Short to Plus

Possible Causes
## Wiring to Camshaft Position (Hall) Sensor (G40) faulty
## Camshaft Position (Hall) Sensor (G40) Installation faulty
## Camshaft Timing Out of Specification
## Camshaft Position (Hall) Sensor (G40) faulty

Possible Solutions
## Check Wiring to Camshaft Position (Hall) Sensor (G40)
## Check/Replace Camshaft Position (Hall) Sensor (G40)
## Check Camshaft Timing
## Check/Replace Engine Control Module




00515 - Camshaft Position (Hall) Sensor (G40): Short to Ground

Possible Symptoms
## Power Loss
## Emissions not OK
## High Fuel Consumption

Possible Causes
## Wiring to Camshaft Position (Hall) Sensor (G40) faulty
## Camshaft Position (Hall) Sensor (G40) faulty

Possible Solutions
## Check Wiring to Camshaft Position (Hall) Sensor (G40)
## Check/Replace Camshaft Position (Hall) Sensor (G40)





Category: Fault Codes




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unplug the MAF take if for a run see if the power comes back

yes the maf can cause low boost