Delphi AF10619 Mass Air Flow Sensor

Delphi AF10619 Mass Air Flow Sensor

Delphi AF10619 is a standard replacement mass air flow sensor for select Infiniti applications that use a probe-only MAF design. Built from Delphi’s OE-focused engineering background, it is made for accurate airflow signal delivery in 2003-2004 Infiniti FX45, M45, and Q45 applications.

Key Features

• Mass air flow sensor, complete assembly
• Black housing color
• Blade terminal type with 4 terminals
• 1 rectangle female connector
• Bolt-on mounting style
• No housing included
• No wiring harness included
• Standard replacement item grade
• Package includes instruction sheet

Detailed Description

The Delphi AF10619 is an OE-style mass air flow sensor engineered for direct replacement in probe-only intake systems. It is built with Delphi’s century of original equipment experience and supplier knowledge, helping maintain the airflow signal the engine control system uses for fuel delivery and drivability. This part cross-references Hitachi Automotive MAF0101 for the same application.

Compatible With 2003-2004 Infiniti FX45, 2003-2004 Infiniti M45, and 2003-2004 Infiniti Q45, this Delphi AF10619 sensor is a direct-fit option for vehicles that require the specified probe-only MAF configuration. The part number AF10619 is also commonly searched alongside Infiniti FX45 MAF sensor, Infiniti M45 mass air flow sensor, and Infiniti Q45 airflow sensor replacement terms.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or stumble during acceleration
• Check engine light related to MAF sensor performance
• Poor fuel metering from a failing airflow signal
• Driveability issues tied to contaminated or worn sensors

Installation Notes and Tips

Verify the vehicle uses a probe-only mass air flow sensor before ordering. Inspect the intake tract, connector, and terminals for damage or contamination before installation. Use the included instruction sheet and confirm the connector shape, terminal count, and bolt-on mounting style match the original part. For best results, clear any stored diagnostic trouble codes after installation and confirm idle quality and throttle response.

Quality Assurance

Delphi builds aftermarket parts using OE heritage and engineering knowledge developed through long-term supplier experience with major automakers. The AF10619 is a standard replacement sensor intended to meet the fitment and function requirements of the listed Infiniti applications.