Hi Sparker ...

Honest answer still at this moment in a grey area about if this is the fix... not driven car much other than TD of few miles Sun, Mon 6 miles, today off drive to get@van then replace back...

First start is still the worst fluctuations but less erratic, smoother fluctuations, very little engine noise variation for now that mis-fire noise has gone...

What I do know deffo has changed is cold starts ie 8 hrs or more of standing are so less laboured and still not put new battery in yet ...

Going over the old videos of the MVB 03 for EGR at cold idle the mass air readings were in the region of 100 to 200 mg/stroke out between data 2 & 3...

Now it is amazing difference... below is MVB screen shot after TBA cleaned...


Further tests are going to be done on the EGR valve and cooling flap but like you said taking it easier ...

You guys are my online therapy group and if you asked my wife she'd say I need a lot ...