New Oxygen sensor in place.

Managed to remove the old oxygen sensor without any trouble and mounted the new one in it's place.

The funny thing is that the AFR (air/fuel ratio) value when mesuring on the exhaust gas is perfect.

About AFR 10 at cold start which indicates a rich fuel mixture.
AFR 13.5 when accelerating, which is good(richer mixture).
AFR 15-15,5 when cruising (lean mixture).

Must say that my K-Jet performs really well under the circumstances, had expected much richer mixture overall. Bosch new what they did when they build it. Could be my narrowband oxygen sensor controlling the Frequency Valve that keeps the mixture so perfect and the fact that my K-Jet are in a very good shape.

Connected the sensor to the gauge which I have put where the center ventilation outlet is.

Connected output 1 to my MS system and output2 (simulates a narrowband sensor) to the old original controll-unit.

Original Oxygen sensor ECY which controls Frequency valve

It seems like the old "lambda controll box" works with the simulated signal since it regulates the "Frequency valve" mounted on the K-Jets fuel distributer as it should.

Yellow connection on Frequncy valve

As seen in the movie when idling it tries to stay around 14.7 but since a narrowband only detects to rich or to lean it's a kind of on/off regulation but it explaines why the AFR values while driving was as good as it was..