日产骐达氧传感器 226A0-ET000（

Nissan Tiida oxygen sensor (OEM 226A0-ET000) installed on the exhaust manifold or pipe, monitors exhaust oxygen content in real time and feeds back to the ECU to fine-tune the air-fuel ratio for optimal combustion. Compatible with OEM 226A0-ET000 and substitutes 234-4380 and OZA603-N5, fits Tiida 1.6L and some related platforms. Installation difficulty is moderate; labor about 30–45 minutes; avoid thread damage. If idle is unstable, fuel consumption rises, or acceleration is weak, sensor performance may be declining; replacement can optimize air-fuel control and emissions.