The alternator wiring doesn't right go to the ECU, but instead to your fuse box wherever it powers every thing else in the vehicle including the ECU. Not finding what you're looking for?Preserve 4age 20v blacktop engine for getting e-mail alerts and updates on the eBay Feed. I are skeptical https://4age20vitbs34432.jts-blog.com/31606291/blacktop-20v-4age-things-to-know-before-you-buy