Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How the Lambda Sensor Works and How to Clean It

Model: (Various brands) Various
Part: Oxygen sensor

In this video tutorial, see how to clean the lambda sensor. The lambda sensor is responsible for fuel mixture, located above the catalyst. It detects the air components inside and sends a signal to the ECU to adjust the mixture. If the sensor is not functioning, it may send incorrect signals, leading to hesitation during acceleration or jerky starts. At this point, take a 22mm spanner and unscrew the sensor; once the sensor is loosened, disconnect the connector using a flat screwdriver. Once the connector is detached, you can finish unscrewing the sensor by hand. To clean the lambda sensor, you can also use an ultrasonic cleaner. Once cleaned, the sensor can be reinstalled in the vehicle.

Updated on 26 May 2026 by ScegliAuto

Video tutorial

Related tutorials

How to clean a lambda sensor on a vehicle
How to clean a lambda sensor on a vehicle
(Various brands) Various Here’s how to clean the lambda sensor in an engine. The lambda sensor measures the percentage of oxygen in the exhaust gases, allowing for an assessm…
How to Clean a Lambda Sensor?
How to Clean a Lambda Sensor?
(Various brands) Various The lambda sensor is a device that analyses and measures the presence of oxygen in the exhaust gases, allowing for the correct air-fuel ratio to be m…
How to Clean the Lambda Sensor Effectively?
How to Clean the Lambda Sensor Effectively?
(Various brands) Various In this video tutorial and in the description below, you can find instructions on how to clean a lambda sensor, or an oxygen sensor. Once the sensor …

How to Open a Stuck Boot on the Peugeot 407?

On the Peugeot 407, the boot may become stuck, possibly due to a problem with the control button or the lock actuator. In such cases, you can perform an emergency opening by following the simple procedure shown in this tutorial. First, open the rear doors, then lower the seat back by operating the release lever. Next, go inside the boot, locate the lock, and manually operate it using a flathead screwdriver. The boot will then be free to open.

Watch the video!


by ScegliAuto

More videos