NTK Air / Fuel Ratio Sensor P/N:24731

Keep the ECU making precise fuel-trim corrections with the NTK Air / Fuel Ratio Sensor, MPN 24731. This wide-band sensor drops in as a direct-fit replacement for the 2006-2015 Mazda MX-5 Miata (L4-2.0L) and the 2011-2014 Mazda 2 (L4-1.5L). Unlike a conventional switching oxygen sensor that only reads rich or lean, this wide-band A/F sensor produces a linear output signal, so the ECU can determine exactly how rich or lean the engine is running and continuously fine-tune the air-fuel mixture toward stoichiometric for cleaner combustion.

• Wide-band 4-wire design: the heated element delivers a linear signal for precise, continuous air-fuel adjustment.
• Advanced ceramic sensor element: a 3-stage contaminant-resistant plasma jet and deposit-trap overcoat protect against element poisoning.
• NTK advantage: a dual-coated platinum interface and thinner ceramic element for fast light-off and response times.
• Easy installation: OE-specified, water-resistant connector and harness accessory hardware; a 21-inch harness with a black, female pin connector.

This standard-replacement wide-band sensor uses M18-1.5 metric threads with a 7 mm thread length. A mounting bracket is not included. Country of origin: Spain. If a failed A/F ratio sensor is the cause of poor fuel trim, rough running, or an illuminated check engine light, this replaces it—diagnose the cause before replacing. Manufacturer part number 24731.