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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. ------------------------------------------------------------ 9/02/2012 audi ADU idle too high at 2000rpm, IAC badly controlled Information relative to this topic will be moved into a folder very soon ------------------------------------------------------------ 9/02/2012 Here below are the information relative to the bad cold start when cold MembersPage/LoloQuatro audi ADU no craking when cold, ether needed link to the log is now available ----------------------------------------------------------- 13/02/2102 still same difficulty to crank when cold, any suggestion ? Crank when warm is fine. http://www.vems.hu/files/v3.3_u003208-2012.02.11-17.09.39%20recording%20no%20cranking%20when%20cold.vemslog ----------------------------------------------------------- 13/02/2012 Once warm press the throttle and relase the idle goes back to normal, but when engine is loaded, press throttle and relaese then the idle goes too low. What are the step to adjust the IAC PID ? I do not understand clearly the combination and effect of these parameters and the documentation is very limited on that topics. Many thanks in advance. Laurent. http://www.vems.hu/files/v3.3_u003208-2012.02.11-18.05.25%20idle%20goes%20too%20low%20when%20release%20throttle.vemslog --------------------------------------------------- 13/02/2012 I have some question when the difference between afterstart and warm-up is not so clear and also deadband meaning. I encounter some difficulty to understand some of the parameters. Is their a good VEMS user in France around Paris for brief advice ?
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