Peugeot 206 Lambda Oxygen O2 Sensor Change 

I own the same car. I discovered there is no sensor underneath, will it cause a problem?

Muestra como es el sensor gracais

Salve buonasera,la mia Peugeot 1.1 benzina mi da codice errore p0420 dopo aver fatto un flush motore lavaggio motore interno mi si accesa la spia,la macchina va bene solo una leggera vibrazione,potrebbero essere le sonde lambda?

How hard was it to break the rust and unscrew them? I have 206 with 1.6 16v. Mine o2 sensors look more or less like your old ones and I will change them soon by myself. I was just watching some videos and some people on other car brands needed to put a hell lot of the effort to unscrew them because sensors are very seized. On the first sensor in the video we couldn`t see how big leaver you used, but on the second one it surprised me how easy it looks :D

please help!! I've had the lambda probe problem for months and I don't know how to fix it. I only get Bank 1 sensor 2 (which is the blue one or the one below) I have already changed the probes but the problem persists. Does somebody knows why it could be??

What size LAMBDA socket do you use? Please 🙏

Is it the fuel consumption lower after?

The sensor which is located underneath. Is it as well easy to change? And how lon does the cable meet to be? Which color has its plug? Thanks mate

Great job, clear steps, thank you My question, is the sensor color is essential or I can put any of them in other's location?