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HFS4 coil whine when set to DR1
Hello Richard,
I sent you an email about a month ago but haven't received a reply so I'm posting on this forum. I have a 2011 BMW 335i with N55 PWG engine and I've got a few questions for you: https://youtu.be/EutKQbGr0cc When the CEL jumper is set to DR1, the controller board makes a loud buzzing noise as soon as I insert the key. The noise won't stop until pulling out the jumper from DR1. I would like to know if this is normal. Everything else works fine if I set it to DR0. Last edited by HenryM; 20-11-2019 at 12:29 PM. |
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