DTC question

[mitch83]

sup guys I datalogged my buddies 97 talon tsi and I pulled his DTC's and I got #2 cyclinder misfire detected and fuel trim malfunction. His O2volts also never went above 0.01 most of the time they just stayed at 0.00v but his timing was doing fine it would pull back then advance to 15-16. When I monitored his Fuel trims the sht was at like 17 for the most part and long was at around 14 or so the sht went to 0 once but I stopped monitoring them after a minute. If you guys have a clue as to what those DTC would mean and if they have anthing to do with the problems I described above that would be great. Its under warranty but I dont trust the mechanice considering to fix his idel the guy just whipped out a screw drive and adjusted the BISS with no scan tool nothing just turned it and called it good.
mitch

 

[LightningGSX]

Sounds like he needs a new O2 sensor and probably a tune-up(plugs/wires)

 

[mitch83]

Yea I figured he needed a new O2 which I guess would probably explain the fuel trim malfuntion because the I belive its the sht trim that gets input from the O2 values hmmmmm I"m all over that thanks for the input.
mitch