Check to see if these wires have 12 volts at the mass air flow sensor using a multimeter. This voltage will only be applied for approximately 5 to 30 seconds after the engine has been shut off ...

He decided to replace this with a modern mass air flow (MAF) sensor instead, and documented the process online.

In this detailed tutorial, we guide you through the process of fixing the P0101 error code in VW cars, which is commonly ...

This sensor type is based on the principle that if a mass is maintained at a constant temperature (above ambient air temp), the thermal loss is proportional to the flow of air over that mass.