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The NGK wideband air–fuel sensor for Mazda 3 (2004–2009) provides a linear output that enables the ECU to measure exact air–fuel ratio and make precise mixture adjustments for better combustion and emissions control. NTK’s controlled ceramic production and refined sensor design include an advanced element with a 3-stage contaminant-resistant plasma jet and deposit-trap overcoat to resist poisoning and improve longevity.
NGK Mazda 3 2009-2004 Direct Fit 4-Wire A/F Sensor
