Engine code P1136?? Eh?

Our Passat is a 2001 1.8T. Took it to Shucks and they threw the computer on it and revealed the above code. Questions:

1. The printout says it was run for a 6-cylinder car. Are the codes the same for both engines?

2. troublecodes.net reports P1136 as "Long Term Fuel Trim Add. Fuel B1 System Too Lean." Sound right?

3. We had just had a 60,000 mile service done at a local dealer. They informed us that there was an engine code left in the computer referring to a bad O2 sensor. We had seen no check engine light, so I ignored them. Within two days, the check engine light appeared, naturally, but from what I can tell, it isn't directly speaking of an O2 sensor. What gives?

No it doesn't neccesarily mean an O2 is bad. I would first very carefully look at all the vacuum hoses (both small braided cloth & larger rubber) in the engine comartment. There are several that often go bad. Sone go behind the engine & over to the air filter housing area, then to the turbo. There are others around the valve cover & intake plenum & go to the firewall & driver's side. The hardest to locate are the larger 1" rubber ones under the intake, they get soft, collapse & get holes in them.