Solve this!

Old 02-22-2014, 09:50 PM
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Angry Solve this!

I'm working on a 2001 VW passage front wheel drive V6 30V. Reason why it came to me it had an ABS problem brake light and it beeped three times. Got another ABS. Then got scanner and got P102 and that means MAF or VAF a CKT Intermittent. I did disconnect it when I started and took out filter and box then replace. So I had to replace passenger side c. V. Shaft and put it back together no it says p0102 or will switch to ABS brake???? I notices on MAF there is an cut black wire and all the others are right????? Please help and when I drive it jolts really hard once and again...
Old 02-23-2014, 07:53 AM
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Error codes are 4 characters or more so P102 isn't really valid as it could be:

P1020 Fuel Pressure Regulation - Control Range Exceeded
P1021 Camshaft Position (CMP) Sensor 'A', Bank 1 - Timing Over Advance or System Performance
P1022 Camshaft Position (CMP) Sensor 'A', Bank 1 - Timing Over Retarded
P1023 Fuel Pressure Regulation Valve (N276) - Short Circuit to Earth
P1024 Fuel Pressure Regulation Valve (N276) - Open Circuit
P1025 Fuel Pressure Regulation Valve (N276) - Mechanical Failure
P1026 Intake Manifold Air Control Solenoid - Short Circuit to Positive
P1027 Intake Manifold Air Control Solenoid - Short Circuit to Earth
P1028 Intake Manifold Air Control Solenoid - Open Circuit
P1029 Intake Manifold Runner Control (IMRC) Valve (N316) - Upper Limit not Reached

VAG Error Code: 16486
EOBD II Error Code: P0102

Fault Location:
Mass Air Flow (MAF) Sensor (G70), Bank 1 - Signal too Low/Short Circuit to Earth

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Engine stall.
Engine running rough.
Excessive fuel consumption.
Excessive smoke.
Loss or Power.

Intake leak.
Air filter blocked.
Wiring/Connector(s) short to earth.
Mass Air Flow (MAF) Sensor (G70) defective.
Dirty Mass Air Flow (MAF) Sensor (G70) air filter.

Possible Solutions:
Check/Replace all faulty Wiring/Connector(s).
Read Measuring Value Blocks (MVB).
Check/Replace Mass Air Flow (MAF) (G70).
Mass Air Flow (MAF) Sensor (G70) signal < 66 Ás

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], [Measuring Value Blocks (MVB)-08], group 003 (3e gear, full throttle, from 1700-4000rpm).

Tech Notes:
Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor.

When is the code detected?:
An excessively low voltage from the sensor is sent to Engine Control Module (ECM).

The Mass Air Flow (MAF) sensor is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. It consists of a hot film that is supplied with electric current from the Engine Control Module (ECM).

The temperature of the hot film is controlled by the Engine Control Module (ECM) a certain amount. The heat generated by the hot film is reduced as the intake air flows around it. The more air, the greater the heat loss. Therefore, the Engine Control Module (ECM) must supply more electric current to maintain the temperature of the hot film as air flow increases. The Engine Control Module (ECM) detects the air flow by means of this current change.

As taken from my
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