lambda sensor

[harry1]

Hi!

I have a Volvo 745 GL -92 B230F with Regina ignition.

I got error code 2-2-1 (Heated oxygen sensor)

1.) Does anyone know if I can check this sensor in the same way as Bosch?
(Voltage pending between 0 and 1 volt.)
I do not get any voltage out and the resistance is infinite.

2.) Can I use a generic sensor or do I have to buy a Volvo regina sensor?

Regards, harry