Quote:
Originally Posted by CrustyNoodle
Given the N55 uses completely different injectors to the N54 I doubt that they are involved in this:
Also given that the turbo set up is completely different I'd guess that the waste gate chatter is not reason for the changes either.
I know my comments don't really shed any more light but hopefully they eliminate a couple of options.
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Is the waste gate what makes the pop sound??