
Originally Posted by
Ephry73
In my conversion the ecu from the donor C5 was used with a custom tune. I'm actually going to start tweaking a nefmoto tune so that I can have the tune I want exactly.
Try to go over to the 2.7 DIY post. Tons of information there.
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one small caveat with a6 ecu's, there is a small tab in them that prevents them from plugging into a s4 harness, if you use a small pair of needle nose pliers and break the tab out it plugs in and works fine. No idea why because both harnesses work the same, maybe a way to charge more for replacements, not a clue.
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