Editing Lambda sensor (section)

==Replacing the Sensor==
This is commonly considered to be a complete pain, primarily due to the sensor's tendency to 'weld' itself into the screw fitting in the exhaust manifold, making it very difficult to remove. Access is also extremely tight, and it is likely that there will not be sufficient room to faclitate using a specialist oxygen sensor socket.

One suggested solution is to cut the wires to the sensor, allowing a 22mm ring spanner to be used to attempt to remove it.

It is said that Lotus garages have their own special ways and means of removing these sensors, and this can involve removing the exhaust manifold entirely, especially where removing the sensor has led to the sensor mounting thread being stripped and having to be re-cut or helicoiled.