I wonder about the difference too --- physically the level float, the mechanical level reader, and the wiring look identical to me on both sides. Maybe the computer averages the signal? With the tank design, they should stay at the same level all the time IMHO.

Did you have anything done to the ...

Anybody have a fuel line diagram (for the entire fuel system) for the 1999 V70XC?

The car's at ipd now, but they are thinking that the entire fuel system is clogged.

Just wanted to clarify, I haven't been able to find the "Turbo Pressure Sensor" under that name, but the manifold absolute pressure sensor, (MAP? from Volvo), is that the same thing?

Link here to the part @ FCP Groton:
http://www.fcpgroton.com/product-exec/product_id/27808/nm/Volvo+V70+Altitude ...

Yeah, I expect that all the motor mounts are worn out...

Well I got the XeMODeX ETM today, and put it in in about 2.5 hours. I removed one 10mm bolt (driver side, rear) with a shorty wrench, and then took the plunge and pulled out the fan shroud and fan assembly to get the other three out.

Took the car for a short test drive, and it accelerates like ...

99 and newer won't rev past about 4k in park!
Built in rev limiter

Thanks, JRL, that answers that!

Now, the car drove perfectly for three days, then same exact issues, codes 1174, 0137, 1171. *throws hands up in air*

I'm going to do the PCV thing, and check for vacuum leaks like FCPGroton ...

Popped in a new MAF ($116 NAPA, with the AAA discount) and it runs great. Took two minutes to do as I had an extra set of hands to help pop off the air tube.

Car has power accelerating, winds up past 4K to 5K, etc etc. The only thing that may still be iffy is the kickdown at higher speed, I can't ...

It sounds like you have a '99 with a doomed ETM.
( They're ALL doomed...) Time for XeMODex!
For more on the issue, here's the link to click:

https://www.matthewsvolvosite.com/forums/viewforum.php?f=12


Ah, yes. I figure sooner or later I'll upgrade to the XeMODex. That's the one thing I was ...

Well, it sounds like you have a bad vacuum leak. Have you looked for any loose hoses?

Yes... but not thoroughly. Also, I now realize that I need to clean the PCV system. I have the "classic" symptoms of oil blown all over the top of the engine under the spark plug cover, foul smells coming into ...

Well, I'm back at it again. Bought the car with 199 on it, it has 202 on it now.

Previous symptoms led to ordering a new OE replacement fuel pump and installing it --- many thanks to all on this forum. Also changed the fuel filter and black gas and goo ran out of it. (Maybe I shouldn't be filling ...