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NGK 4‑wire air‑fuel (wideband) sensor for Acura RSX (2002–2004) supplies a linear AFR signal that enables the ECU to continuously adjust fuel delivery for optimal combustion and reduced emissions. Built with NTK ceramic technology, the sensor includes a 3‑stage contaminant‑resistant overcoat to protect the element from poisoning. As a direct‑fit replacement, it helps restore dependable closed‑loop control and accurate engine feedback.
NGK Acura RSX 2004-2002 Direct Fit 4-Wire A/F Sensor
