日产轩逸骐达氧传感器 234-9147 原厂规格直插替换，适配216500-7800/22693BV80A

Nissan Sylphy, Tiida oxygen sensor 234-9147 installed in exhaust pipe, monitors oxygen content in exhaust, provides feedback to ECU to precisely control air-fuel ratio, ensures engine combustion efficiency. OEM number 234-9147, compatible with original parts 216500-7800, 22693BV80A, supports direct plug replacement. installation difficulty: medium, estimated labor time 0.5-1 hour, be careful not to damage threads during disassembly. If idle is unstable, fuel consumption rises noticeably, acceleration is weak or engine fault light is on, usually sensor aging or failure; replace promptly.