Diagnosis of the Lambda probes after 210,000 km

Hello together, low engine power at the Colt 1.1i has led to the diagnosis of the Lambda probes. The behavior of these still original probes is as seen on the video. Therefore they were exchanged, also visible in the video. Can you make at home, not so difficult and no somderwerkzeung necessary.https://youtu.be/cAJpOqKQsPQ Nice day still R