I need help clarify two thihngs that came up while troubleshooting a 2003 Passat 1.8T (153K miles): Rough, stuttering during idle, misfire, etc. - not resolved.
I have searched this forum, Googled on this issue and I am somewhat confused on two things - does this car have an ICU or not? If it does where is it? Several posts, including the one in the Information-Base section on B5 point to similar issue and recommendation that ICU may be the problem.
However I am getting conflicting information on this. The engine code on this car is AWM and there appears to be no ICU on top of the air filter box. I also saw another post at justanswer.com where the mechanic actually stated that this car does not have an ICU?!?
wher is the ignition control module on a 2003 passat - JustAnswer
The second item I need help clarify is the term ICU itself as there are couple other terms used and I am not sure if this is the same thing or not. Which one is it that is being referred to when it comes to ignition: Ignition Control Module (ICM), Ignition Control Unit (ICU) or Power Output Stage?
There are several threads on this topic with images that would definitely help but looks like images are missing because http://www.clubb5.com is dead - which is a shame.
Based on some comments and write ups this article would be a good resource on the topic but is unfortunately also dead: http://clubb5.zeroforum.com/zerothre...=331320#331320
This article in the Information Base and provides good info but is for engine code AEB I think (images dead also): Ignition Control Module (ICM) Install Procedure
If you can help clarify this for me and/or point to the right link, it would be much appreciated.