VCDS

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VAGCOM Block Cheat Sheet

Basics

1 coolant temp o2 sens banks 1 and 2
2 load injection time maf
3 maf throttle angle timing

Boost

113 load throttle drive atmos pressure
115 load spec'd boost actual boost
118 iat boost duty cycle actual boost

Timing

20 timing correction 1 2 3 4
21 timing correction 5 6
22 load ign angl corr 1 ign angl corr 2
23 load ign angl corr 3 ign angl corr 4
24 load ign angl corr 5 ign angl corr 6
26 knock sensor voltage 1 2 3 4
27 knock sensor voltage 5 6

O2 sensors

30 o2s ctrl op
31 o2s v pre twc o2s post twc b2 pre twc b2 post twc
32 o2s LTFT: idle b1s1 part b1s1 idle b2s1 part b2s1
33 o2s v and ctrl pre cat: b1s1 ctrl b1s2 v b2s1 ctrl b2s1 v
34 o2s ..
35 o2s ..
36 o2s ..
37 load bank1 o2c volt s2 corr val s1-s2
38 load bank2 o2s volt s2 corr val s1-s2
43 o2s aging
44 o2s aging

General

4 batt voltage coolant temp iat
5 load speed Op condition-idl/prt/fl/dcl/erch
6 load iat alt cor fact
10 load throttle drive ignition time
11 coolant temp iat ignition time

Misfires

14 load misfire count misfire status
15 misfires 1 2 3 status
16 misfires 4 5 6 status
18 misfires lowest+speed@ highest+speed@ lowest+load@ higehst+load@

Throttle

60 throttle vcm adapt
61 throt volt throt drive op condition
62 throt sens 1 sens 2 pos sender 2
63 throt pos duty cycle

Secondary air injection system

77 bank 1 air mass rel air mas diag
78 bank 2 air mass rel air mas diag

Catalytic convertors

46 cat b1
47 cat b2

Misc

50 spec'd eng spd ac idle boost ac compressor on/off
54 op condition throt pos throt drive
55 idle
56 idle
66 cruise
70 evap
71 fuel tank