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I just noticed this a few days ago. this knocking sound comes at around 3k and only happens when I barely get on the throttle (like 1-2%). From what I understand, it is just the tune that causes this. I checked my data logs and it was indeed the VVT. as soon as the angle changed to anything above 35 at around 3k rpm, I could hear the ticking sound. Mine is not as bad as this but the concept is he same [ame="https://www.youtube.com/watch?v=ErpHXIr4BmI"]FA20 VVT Valvetrain Noise - Perrin Tune - YouTube[/ame]
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