Yup. Sorry. that was the vicodin talking.

Take it from somebody who works on cars for a living - the K&N air filters aren't always a good idea. I strongly recommend avoiding them on any vehicle with a hot-wire (ex GM) style MAF. I suspect the oil on the filters to be ruining the sensors. Even new filters, not ones that the customers re-oiled, have been causing problems. It'* important that I state that I can't prove the K&N filters are directly ruining the sensors. That being said, in my own personal experience, I've replaced or cleaned hundreds of problem MAF sensors and every single vehicle so far has had a K&N (or similar) air filter. Some sensors recovered with cleaning, most didn't.

The sky is falling the sky is falling!

DS, no offense, but do you know how many times I've heard that story? And with over 9000 members here, at least a quarter (probably more) running K&N'*, we've never seen a single failure of a MAF sensor because of it. Frankly, we rarely see a MAF failure at all. Maybe 2 or 3 a year at most.

You won't kill an MAF sensor from the oil, but if you do over oil the filter you may notice some stuttering problems from the oil getting on the MAF. Took a few hundred miles to clean up
Been there done that......

Like I said, I have no proof it'* the K&N filters. It just seems weird to me that with all the MAF sensors I replace, usually because they are reading low gram/* and causing lean codes, every vehicle so far has had a reusable air filter. I should add that I have never replaced a MAF on a 3800 though! Mind you we don't see too many 3800s in with mechanical problems at all.