Here are some more captures of the pump current flow from a known good AXP Golf broadband HO2S. They were taken from the red and yellow wires on the sensor side of the multi plug. The first is at idle, the second at fast idle. The third is after a "blip" on the throttle which clearly shows the PCM reaction to the extra fuel and the time taken before recovery. Bear in mind that is not the sensor output but the PCM output to the pump. These captures show the amplitude lower down the scale than my previous one but I think this is just because the - and + were reversed.







Hope this is of help to someone.
Regards,
Bryan.