I thought I would post the captures from the Fiesta with the new catalyst for future reference. It is in animated form so you need to give it time to load. The first few frames are with the engine at 3,500 RPM & engine nice & hot. It is interesting to note the low post cat sensor output (in red) & slight switching that is just visible. I will leave it there & let you draw your own opinions about what you see.

Since taking these captures I have found that the Laptop charger was causing interference & also the lead that I was using for channel A appeared to be causing allot more noise than the others (now demoted to channel C )

If anyone has any views or corrections to my comments then don’t hold back (manners appreciated of course )

Cheers all

Dave (Hill)