Neil and Abscate, thanks again. I will get the pipe back on securely and go from there; my concern is that the pipe popping off may have acted as a pressure relief to an overboost. While I've done plenty of work on cars over the years, this is the my 1st involving a turbo. The 'pop' I heard was just...

That's actually what I ended up doing (fully removing the hose etc) but while in the midst of that got to thinking - I'm guessing I had an overboost and the loose pipe going into the ETM was a result, not the cause. I heard a pretty good 'pop' just before it started to run wobbly. So, now I'll be se...

Russ & Neil, excellent call. Neil, your description of the pipe layout was spot on. I checked each with mirror and tugging, pushing/pulling on the various pipes. All seemed to be in good shape and looked/felt Ok - until the last one I checked at the ETM (I said 'ETC' in my post, my bad) Hard to ...

Russ, thanks for the fast reply. I did look at them previously, but on a level somewhere between casual glance and thorough inspection; I will take a close look ASAP. Out of curiosity after I posted the problem, I went out and re-connected the MAF, mostly to erase and then pull a fresh code. I was s...

To MAF (again) or not to MAF? I have a 2000 v70xc with 160K miles, Eng: B5244T, 2.43 L. After a 45 minute highway drive and then on surface roads for 10 minutes at slower speeds I had a pop/backfire (uh-oh I thought, never heard that before); at the next start up a few minutes later (after a stop fo...