Hi my names Marty and im new to the ownership of an Audi S4 1998 i have owned it for less then 24 hours and it has now gone into limp mode throwing code P1639 im a qualified mechanic and good a diagnostics but have to say this has got me stumped where to start as there is so many possibilities any ideas would be grateful

Thanks in advance
Marty

 

Just though i would update i have found the problem.

The cause was under the ECU there is loom plugs one being for the fly throttle that had got water in it and the pins had corroded slightly i cleaned them up and coated them to protect against water ingress all sorted thought i would post the way i mended it as it may help someone in the future

Cheers
Marty

 

Willkommen to the forums

thanks for posting the solution to your problem. Water infiltration is definitely a bad thing. for future questions, or when searching for answers to issues, it is helpful to post in the appropriate sub-forum. There is not a whole lot of traffic here in the "New Member Welcome Area". You are more likely to have your question seen by a guru if you post elsewhere.

anywho, glad you are sorted. good luck with the car

 

Thanks im enjoying the car if someone wants to move the post to the correct section and alter the thread tittle that is fine by me as it will hopefully help someone in the future