yuri
06-25-2022, 02:17 PM
I have a 1994 s4 wiring harness and ecu in my 1991 Audi 90 Quattro. I’m having issues with my constant power source to the ecu(s26). The 5 amp fuse keeps blowing because of a short and I’m not sure how to find the problem. When the ecu is unplugged the short doesn’t happen. So it’s somewhere between the ecu plug-in and everything the ecu controls [emoji51]. I’ve attached 2 diagrams for reference. https://uploads.tapatalk-cdn.com/20220625/2eb5014201459b508b9d3e0b242bbc8a.jpg
https://uploads.tapatalk-cdn.com/20220625/9251fddc37358e2a3dde76b5c97320d6.jpg
I do have a new Ecu Master stand alone I was planning on putting into the car l, but I’m worried that the short will hurt that new ecu.
I’m hoping for some helping coming up with a plan of attack to find the short.
Below is where I found these diagrams.
https://forums.quattroworld.com/s4s6/msgs/21009.phtml
Sent from my iPhone using Tapatalk
https://uploads.tapatalk-cdn.com/20220625/9251fddc37358e2a3dde76b5c97320d6.jpg
I do have a new Ecu Master stand alone I was planning on putting into the car l, but I’m worried that the short will hurt that new ecu.
I’m hoping for some helping coming up with a plan of attack to find the short.
Below is where I found these diagrams.
https://forums.quattroworld.com/s4s6/msgs/21009.phtml
Sent from my iPhone using Tapatalk