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What is a Lambda Sensor?

Model: (Various brands) Various
Part: Oxygen sensor

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The lambda sensor is an oxygen sensor located in the exhaust manifold that measures the amount of residual oxygen in the exhaust gases after combustion. It measures the oxygen in the exhaust gases and sends the data to the ECU, which regulates the amount of fuel to inject for the next combustion.

The ideal (stoichiometric) ratio is 14.7:1, meaning 14.7 parts of air for 1 part of fuel. A lean mixture has a value greater than 14.7, indicating too little fuel and too much air, while a rich mixture has a value less than 14.7, indicating too much fuel and too little air. This component is important as it allows the ECU to maintain the optimal mixture for engine performance, fuel consumption, and emissions.


Posted on 27 February 2026 by ScegliAuto


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To remove the rear seat of a Hyundai Tucson, follow these steps. Start by moving the front seats to their most forward position to gain space. Next, locate the release lever on the underside of the rear seat, near the floor. Press this lever down while pulling the seat upwards to unlock it from the anchor pins. Once unlocked, tilt the seat upwards and forwards to remove it from its position. Repeat this process for both sides of the rear seat. Be careful of any electrical cables or components that may be connected to the seat during removal. Once the rear seat is removed, the disassembly is complete.

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