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

The most common fixes are replacing the O2 sensors followed by replacing the mass air flow sensor. I wouldn’t think it is a fuel pressure or volume issue based on how you say it runs.

This was the case for [Rob] and his Porsche 944, which had relied on an old-fashioned mechanical air flow meter (AFM). He decided to replace this with a modern mass air flow (MAF) sensor instead ...

P0101 (Mass Air Flow (MAF) Sensor Performance) P0172 (Fuel Trim System Rich) P0299 (Engine Underboost) P0506 (Idle Speed Low) P1101 (Intake Air Flow System Performance) ...