226936CA0A Nissan SENSOR ASSY-AIR, Price: 302.02$, Weight: 0.212kg

Engine Air Intake Sensor Assembly

This air intake sensing unit is a key part of Nissan engine management. It helps the ECU “see” what air is coming into the intake so fuel delivery and ignition timing stay accurate. When this sensor is healthy, the engine runs smooth, starts easier, and keeps emissions under control ✅

Why this part is needed

Modern engines must match fuel to airflow every second. This sensor provides the airflow/temperature signal that the ECU uses to calculate the right mixture, especially during cold starts, quick acceleration, and steady cruising.

How it works

Air moving through the intake passes the sensing element. The sensor converts air conditions into an electrical signal. The ECU reads it and adjusts injector pulse width and sometimes throttle strategy to keep power and economy balanced ⚙️

What happens if it’s broken

A failing unit can cause rough idle, hesitation, poor fuel economy, hard starting, black smoke, or a check engine light. In severe cases the ECU may enter limp mode, reducing power to protect the engine

Technician tip

Always inspect the air filter and intake boots for leaks or dirt contamination, as these often shorten sensor life.