英菲尼迪氧传感器 22693-1LA0B（22693-1LA0C），空燃比精准监测

Infiniti Q50, Q60, QX50 models with 2.0T or 3.7L engines, compatible with oxygen sensor 22693-1LA0B (also compatible with 22693-1LA0C), installed at the front of the exhaust manifold, continuously monitors exhaust oxygen content to help ECU precisely adjust fuel injection and air–fuel ratio for efficient combustion. Replacement labor about 0.5–1 hour; handle carefully to avoid thread or harness damage. If idle is unstable, acceleration weak, or fuel economy surges, sensor aging is the likely cause; replace promptly.