NTK: The largest maker of Oxygen Sensors in the world

Everyone agrees that the amount of pollutants produced by vehicle engines should be reduced. To stimulate this, officials in many countries have progressively passed laws that are increasingly strict on emissions.

The three-way catalytic converter is the most commonly used method among car makers to reduce emissions.This system makes the major pollutants in exhaust gas less toxic. But this system works efficiently only when the air-fuel mixture is maintained within narrow range near the lambda point. This is where the Lambda Sensor comes into play.

The Lambda Sensor detects the composition of oxigen in the exhaust gas and informs the ECU (Electronic Control Unit) about the vehicle's air-fuel mixture. The ECU uses this information to decide if it is necessary change the air-fuel mixture to reach an ideal condition (see the picture). This is known as closed-loop control, because the Lambda Sensor's exit signal is redispatched to ECU ensuring that the air-fuel mixture is always appropriate and that the catalytic converter is functioning properly, reducing in consequence the emission of pollutants. It also guarantees good performance.

The NTK oxygen sensors are tested one by one to guarantee the highest levels of quality.

Cares for installation:
• Install with specified torque (3,5 the 4,5 Kgfm)
• Not to remove the grease of the thread, therefore is an anti-adherent special composition to high temperatures.
• Not to perforate or to repair the whip of the sounding lead, therefore promotes water infiltration.
• To fix correctly the whip of the sounding lead, preventing that he is untied or strained.
• To substitute the in agreement sounding lead specification of the manufacturer of the engine.
• To prevent strokes (mechanical shocks), therefore can damage the ceramic components of the sensor.