WAI MAF20309 Mass Air Flow Sensor

Mass Air Flow Sensor Overview

WAI MAF20309 is a mass air flow sensor built as a 100% new replacement for direct-fit service. It is engineered to meet or exceed original equipment manufacturing and performance specifications, with a rectangular female connector and 4-pin terminal layout for a clean electrical connection.

Compatible with select INFINITI and Nissan applications, including Fits 2014-2018 INFINITI Q50, N/A; Fits 2014-2018 INFINITI Q70, N/A; Fits 2014-2017 INFINITI QX60, N/A; and Fits 2013-2015 Nissan Altima, N/A. This part number, MAF20309, also covers Fits 2016 Nissan Murano, N/A and Fits 2014 Nissan Pathfinder, N/A.

Key Features

• 100% new mass air flow sensor construction
• Meets or exceeds OE manufacturing and performance specifications
• Rectangular connector with female terminal interface
• 4-terminal design with analog temperature technology
• Black sensor housing for a factory-style appearance

Detailed Description

MAF20309 is a sensor-only mass air flow replacement from WAI Sensor Only, built for direct-fit installation on supported INFINITI and Nissan platforms. The design focuses on accurate airflow measurement and stable signal output, using a single connector, pin-style terminals, and OE-level dimensional and electrical targets. For buyers searching for a Nissan Altima mass air flow sensor or an INFINITI Q50 MAF sensor, this part number provides a straightforward replacement path.

This part cross-references Hitachi Automotive MAF0102 and OE number 22680-1MG0A for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hard starting related to incorrect sensor output
• Reduced throttle response from faulty air metering
• Check engine light conditions tied to MAF sensor faults
• Fuel trim issues from inconsistent intake air measurement

Installation Notes and Tips

Verify connector shape, terminal count, and application notes before installation. This sensor is listed as sensor only, with no mounting hardware or bracket included. Confirm the vehicle build date notes for 2016 Altima and 2016 Sentra applications before ordering.

Quality Assurance

WAI states that this part is manufactured to meet or exceed OE specifications and is backed by a limited lifetime warranty. Precision-engineered materials are used to support fit, performance, and service life.