Originally Posted by bbrideau
... There's an arm inside the vafm that slides across contacts as the vane opens up with more air flow if it is not making a solid connection you could throw a code or rough running.
Yup, it really is that simple. http://personal.utulsa.edu/~nathan-b...33volumeai.pdf
So before you start prying open sealed components, you ought to at least run the easy-to-do diagnostics in the manual.
Of the possibilities mentioned, it is most likely a really dirty VAF (internally), and you'll find that out pretty quickly with the ohmmeter test referenced above. You can disassemble it and rebuild it, but it's not for the clumsy.
But since you're going to be paying $550 (for the new part) or $200 (for the Autozone rebuilt part) or $150 (for a junked part), it's worth giving it a try.
But ONLY if your ohmmeter tells you to; you'd feel bad if you wrecked a perfectly good VAF only to find a broken wire harness later.