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Yep, I have had the same issue.

I have a manual tranny and when getting on it a bit 3/4 way through 2nd gear I have the same problem. Took mine to the dealer and showed them with a mech riding in the car. They said "what problem" normal operation.

Recorded it with dash hawk and it looks like a VVT problem or ECM problem.

I had no fuel or spark issue (miss) but a timing rolled back.

I have no idea how to fix it.

It's an intermittant issue so I will have to deal with it.

Strange.
 
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