1993 UrS4 rough idle when cold
#1
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1993 UrS4 rough idle when cold
I purchased my UrS4 in december 2014 and when I had a lot of hesistation under WOT. Since then I upgraded to the 2.0t red top coil conversion and the hesistation at WOT is gone at WOT but it is there between gear shifts.
What I have tried is disconecting the ISV and the rpms go up to 1k. Rough idle is gone and hesistation between shifts is gone but I do get a check engine light.
What is going on? Please help!
What I have tried is disconecting the ISV and the rpms go up to 1k. Rough idle is gone and hesistation between shifts is gone but I do get a check engine light.
What is going on? Please help!
#2
Almost all the info you need to solve your AAN problems can be found by clicking on the appropriate labels in this live version of the UrS4/S6 Engine Bay Device Map
http://members.shaw.ca/speedtek/UrS%...ice%20Map.html
http://members.shaw.ca/speedtek/UrS%...ice%20Map.html
Last edited by UrS4boy; 08-08-2015 at 02:54 PM.
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