Hi,
Yes, unplugging the MAF solved the
problem but replacing didn't - I posted a thread about that specifically on here. I have the EGR gasket mod - made no difference at all.
When mine does it, you can see the engine literally shaking in the bonnet - almost jumping about!! The car sounds rough as hell, like it's coughing, the exhaust fumes are very hot if you put your hand near it (far more so than normal). This is what leads me to think it's a stage 1 regen but it seems to be far worse than anyone else reports (most people say they don't even notice it).
So far I have tried replacing:
Fuel filter
EGR Gasket
MAF
None
help.