View source for VCDS

==Ross-Tech Links==
*http://www.ross-tech.com/vag-com/index.html
*http://www.ross-tech.com/vag-com/m_blocks/
*http://wiki.ross-tech.com/index.php/Audi_A4/S4/RS4_%288D%29
==Full listing==
http://nyet.org/cars/info/VCDS%20List%20of%20Engine%20Measuring%20Blocks.xls from http://www.nefariousmotorsports.com/forum/index.php/topic,519.msg3972

==Block Cheat Sheet==

===Basics===
{| class="wikitable"
|1||coolant temp||o2 bank1 (right))||o2 bank2 (left)
|-
|2||load||injection time||maf
|-
|3||maf||throttle angle||timing
|}

===Load and Boost===
{| class="wikitable"
|111||pid ilimit trim 1||pid ilimit trim 2||pid ilimit trim 3||pid ilimit trim 4
|-
|112||egt b1||enrichment b1||egt b2||enrichment b2
|-
|113||rpm||load||throttle drive||atmos pressure
|-
|114||uncor spec'd load||spec'd load||actual load||boost valve duty
|-
|115||rpm||load||spec'd boost||actual boost
|-
|118||rpm||iat||boost duty cycle||actual boost
|}

===Timing===
{| class="wikitable"
|20: timing correction||1||2||3||4
|-
|21: timing correction||5||6|| ||
|-
|22: correction factor||load||1||2||
|-
|23: correction factor||load||3||4||
|-
|24: correction factor||load||5||6||
|-
|26: knock sensor voltage||1||2||3||4
|-
|27: knock sensor voltage||5||6|| ||
|}

===O2 sensors===
{| class="wikitable"
|30: o2s||ctrl op|| ||
|-
|31: o2s v pre(s1)/post(s2)||b1s1||b1s2||b2s1||b2s2
|-
|32: o2s LTFT pre(s1)||idle b1||part b1||idle b2||part b2
|-
|neg no's = ECU subtracting fuel (because too rich)|| || || ||
|-
|pos no's = ECU adding fuel (because too lean) || || || ||
|-
|33: o2s pre(s1)||b1 ctrl||b1 v||b2 ctrl||b2 v
|-
|34: o2s aging post(s2) b1||rpm||egt||time period||status
|-
|35: o2s aging post(s2) b2||rpm||egt||time period||status
|-
|36: o2s post(s2)||b1 v supply||b1 status||b2 v supply||b2 status
|-
|37: o2s bank1 ||load||volt s2||corr val s1-s2||status
|-
|38: o2s bank2 ||load||volt s2||corr val s1-s2||status
|-
|43: o2s aging pre(s1) b1||rpm||egt||time period||status
|-
|44: o2s aging pre(s1) b2||rpm||egt||time period||status
|}

===General===
{| class="wikitable"
|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===
{| class="wikitable"
|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@||highest+load@
|}

===Throttle===
{| class="wikitable"
|60: throt||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===
{| class="wikitable"
|77: bank 1||air mass||rel air mas||diag
|-
|78: bank 2||air mass||rel air mas||diag
|}

===Catalytic convertors===
{| class="wikitable"
|46||cat b1
|-
|47||cat b2
|}

===Misc===
{| class="wikitable"
|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|| ||
|}


[[Category:Tuning]]