[RayVoy]

How's the air filter?

Your a tech, so I can assume no codes?

When you cleaned the tb, did you check the free movement of the butterfly?

When you have the problem, is the motor hot, or cold?

 

[RayVoy]

Well, there are some updates, but I don't think any addressed that problem.

But, they might include the updates when running the tests.
They normally charge 1 hr labour to do the reflash, but if your paying for the test, you might get it included.