Delphi’s Mass Air Flow (MAF) Sensor Probe, No. AF10058, is a greener option to the traditional MAF assembly repair. Instead of replacing the entire MAF sensor including the plastic housing, Delphi developed a repair alternative where the technician “unlocks” the sensor probe from the housing unit and replaces it with a new one with a “key” included with every replacement sensor. The AF10058 is not remanufactured, it is an OE part manufactured new by Delphi. This ensures a correct ECM interface and exact OE performance.