This is block logging from 033 in VAG-COM (oxygen sensor control)... I'm particularly concerned about the low voltage in the RPM ranges 4000-5000... it's at 0.02, and its specified value is .13 to 3.6. Do I have cause to worry about my o2 sensor, or is this deviation normal? mult. fuel trim from block 032 is at -15.6%... my MAF was just replaced, should I change my oil? (I haven't since I chipped, about 2000 miles ago) Thoughts/advice appreciated, thanks. Let me know if I should re-log if this one sucks. This was all brought about by the ass fuel economy I'm getting of late.


RPM Lambda Voltage
800 0 2.96
800 0 2.94
800 0 1.6
1240 0 1.46
1560 0 1.42
2280 1.6 1.08
3040 -1.6 1.12
4440 0 0.02
5360 0 0.96
3560 0.8 0.36
4000 0.8 0.02
4680 0.8 0.02
5320 0 0.76
3920 0 1.28
3520 -0.8 1.5
3520 7 1.62
3440 6.3 1.68

O2 is probably on the way out.Might take it out and clean it.