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Audi RS2: Long Block 2.7 liters, Motronic VEMS, 7.5 to 1 Comp, Precision 6265, 10 bosch injectors 550cc @4bar. 034 DIS high output coils, 60-2 crank sensor. Audi ADU very bad cold start LoloQuattro 07/02/12 Thanks for your request for additional details, I have inserted some clarification 03/02/2012 LoloQuattro Now the hot start and idle is solved, I still have a problem to start. Here are the parameters for cranking. Priming, crancking setup Primepulse 0.0ms Hot start primep temp scaling 20% Cranking threshold 399rpm Crank Ignition advance 9.0° Crank VE 60% Afterstart setting (-40°c) 12 cycles Afterstart Warm Time (77c) 0 cycles % of Warmup Enrichment at highest RPM 66% % of Warmup Enrichment at 100kpa 90% My crancking enrichissment curve is: -20°c 300% 0°c 200% 30°c 150% 70°c 100% Afterstart Enrichment curve -20°c 275% 0°c 181% 30°c 138% 20°c 100% Warmup Enrichment Curve -40°c 140% -30°c 135% -20°c 130% -10°c 127% 0°c 124% 10°C 120% 30°c 110% 40°c 107% 60°c 100% 69°c 100% IAC duty at crancking -40°C 85% 77°C 42% IAC reference curve just some points -40°c 60% ... 0°C 30% ... 69°C 23% Any suggestion ? What kind of injectors and fuel do you use? LoloQuattro 07/02/12 Bosch green 440cc - assuming on pump gas (?) How starting is bad? Is it cranking forever, or firing some strokes but cannot rev up, or revs and dies? ... LoloQuattro 07/02/12 It did not start at all, it is crancking forever, I must inject Ether to have a start and then it is OK. Once warm if I stop, it can restart it is OK. You should give more details, preferrably your full vemslog/vemscfg files. LoloQuattro 07/02/12 I have recorded log, how to put a link or attach them to this page? ----------------------------------- LoloQuattro 08/02/12 I am currently trying to understand how to upload my log. Thanks for the advise
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