Technical Grande Punto Lambda Sensors

[bob2007]

Could anyone point me in the direction of where the lambda sensors are (both pre cat and post cat) or easiest way to access them? Planning to replace tomorrow and would be helpful to have rough idea before hand.

 

[cmosfxx]

both are pre and post the catalytic converter. this is on the exhaust manifold.

 

[bob2007]

Sorry, I should be more specific. It's the post cat lambda sensor that I need to replace. Just wondered if it's easy to access and replace with a spanner, and also where the fires connect.

Imagine it will be easy to see once the car's on jacks but if there's a photo online somewhere that would be helpful

 

[Ckem247]

Done this when I done my de cat, unplug it first after jacking it, then heated up then attached an adjustable spanner onto it, job done

 

[cmosfxx]

Sorry, I should be more specific. It's the post cat lambda sensor that I need to replace. Just wondered if it's easy to access and replace with a spanner, and also where the fires connect.

Imagine it will be easy to see once the car's on jacks but if there's a photo online somewhere that would be helpful

Are you sure the sensor is bad and not the converter? what's the voltage?
If the sensor is bad you can leave it as is btw no problem just the error.

If you look after the converter you can find the sensor. It's the only thing anyway around there with cables...

What's the engine?