YouTube - ‪02 grand prix sluggish acceleration‬‏

It doesn't happen on the first acceleration run, probably because I didn't have space to get up to a speed where it would act up. The second one you should be able to hear it clearly. You might have to turn up your speakers a bit though.

I'm going to pull the mass air flow sensor tonight and try to drive it and see how it acts, then clean the thing while I'm at it.