Audi VW Mass Air Flow Sensor - Vitesco 04L906461B

Product Information

Mass air flow sensors are tasked with measuring the amount of air entering the engine via the intake. This mass air flow sensor is known as a hot film sensor which will suffer performance deterioration over time. The sensor is designed to be self cleaning. A faulty or non functioning mass air flow sensor will cause a check engine light and in some cases cause a limp mode. The best way to diagnose a faulty mass air flow sensor is to disconnect it and see if engine idle or performance improves.

• Check engine light illumniated with OBD codes related to MAF sensor faults
• Engine has rough idle and/or stalls
• Short term fuel trim is rich at idle or lean under load
• Constantly runs rich or lean

About Vitesco

Vitesco Technologies Group AG was known as Continental Powertrain, part of the Continental AG group and officially became their own business unit under the Vitesco name in September of 2021. Vitesco is headquartered in Regensburg and is a German automotive supplier for drivetrain and powertrain technologies to many of the leading car manufacturers in Europe. The company develops devices for electric vehicles as well as internal combustion engines. All products released to the aftermarket from Vitesco are considered original equipment (OE).