Quote:
Originally Posted by skitsos
also, make sure the plugs are the issue first, because 12k miles seems a bit low. Make sure you are also running the right fuel for your flash tune, because sometimes when an ECU is flashed, it is tuned for a higher minimum octane.
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This.
Try to acquire the highest octane available to you (91/93). If you're already running high octane try switching stations, especially if you're loyal to one station... that one station could be your issue