Okay, not sure if anyone is following this thread, but wanted to update it for any future online garage grease monkeys that may have a similar issue.

The problem was the ETM. Essentially, it was going offline because due to what I suspect, was a short in the wire loom.

I had replaced the ETM in ...

V70_R_

You have to figure though.. the moose hunting sticker is going to devalue the car so much that the car is a total write-off. PM me and I'll be happy to arrange a tow and take ownership of the obviously defunct automobile. I wont charge you for this, only because I am nice and I MAY be able ...

xemodex sells upgraded ETMs. They do not require any other upgrades. And by upgrade, it is only meant that it is less prone to failure, not any sort of performance part.

To be clear. The ETM is an entirely different part, the throttle. The ECM is the central computer. You started this thread with ...

okay... no.

I went out an bought a new MAF based on this thread and no dice. I still have a major problem. So, in my case, (failed acceleration, or useless gas pedal), when I unplugged the MAF, it had no effect on my driveability, yet the MAF was fine. Just putting that out there for reference.

No, the yellow sticker is for the ETM, not ECM. This is the electronic throttle module, not the engine control module. It is very common for the ETM to fail, and the yellow sticker ETMs have been dealt with to some degree (I think a software upgrade) by volvo. The white sticker ETMs are from the ...

so I unplugged the MAF and the engine kept running, it should have died immediately,

Seriously? I have unplugged my MAF several times with no change to engine performance. I even drove about 1 mile (in a deserted parking lot) with the MAF unplugged. Maybe I need a new MAF as well. Thanks for the ...

My bet would be the install of the Master Cylinder was fine. I have had a hiss from the brake pedal for awhile. It is a common fault. I have heard of folks manipulating the the grommet on the booster to get more time. If the reseal does not work, you'll just have to get a new brake booster anyhow ...

Well... I have done what I can do. I finally ran out of credit with the wife, and we agreed to call a tow truck to take it to the dealer last night. During the "conversion", she used the term "White Whale". I see her point, this is turning me into a young Captain Ahab. I suppose I will try and ...

Could be that, thanks for the thought. Do you know of an easy way to diagnose that? Not sure how long it would take to take off the intercooler. I think the intake hoses are all fine.. I have taken them off and on quite a bit during the XeMODex install.

idea...

Could the CBV be stuck open, due to oil and crud from the clogged PCV. The PCV is sending oil back into the intake via the PTC, and that crud is hindering operation of the CBV.

Would a clogged CBV result in little to no acceleration?

Its pretty easy to check the CBV, so I'll probably ...