VW Mass Air Flow Sensor - Delphi 03H906461A

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 Delphi

With a presence in more than 150 countries, and a global network of over 2750 service centers, Delphi provides OE specification end-to-end solutions from components to sophisticated software solutions.

With a wide-ranging portfolio including gasoline fuel systems, diesel fuel systems, maintenance solutions, engine management, and vehicle electronics, backed by OE-level diagnostic and test equipment, training, and technical information, Delphi enables garages to service and repair vehicles right the first time.

Delphi's portfolio includes gasoline fuel systems, diesel fuel systems, maintenance solutions, engine management, and vehicle electronics, plus training, diagnostics, and test equipment. We serve the passenger and commercial vehicle segments, as well as agricultural, marine, and industrial vehicle markets worldwide.