I have an ongoing problem where I get oil coming into my air box. It fouls my air filter, restricting air flow, and eventually gums up my MAF sensor so bad that the car runs terrible. I'm replacing the filter and cleaning the MAF monthly. Time for a solution.

I've been told that the oil is likely blow-by, because of worn piston rings. If that is true, so be it. All I want to do is remove the hose feeding into my airbox which comes from my pcv valve (I think). If I could route this hose under the engine, and plug the hole in my airbox would I be fine? I realize this may not be in the best intrest of the environment and whatnot, but would my proformance suffer at all?

COuld possibly be a stuck EGR causing gases to get backed up?

What year model and engine size are you talking about? How many miles on engine?

EGR was replaced when I noticed the problem about a year ago, no effect. (that is the one that rattles right?)

1995 lx 1.9l with 130,000miles

Just remove the hose and put a breather filter at the end of it, that's what I did when I had this same exact problem (because I ran at too high RPMS)
My engine did eventually blow up though.. I think it did at least..
-Scott

Thats what I was thinking. Basically, if this car costs me more than $200 at any one time for a repair, it is gone. It is running on borrowed time, so this is a easy fix for the time being. :)

I think Scott's fix is a good one ... and I've already been looking at the small air filters available at AutoZone to modify my family's two '97's.

This pathway back to the air intake is obviously an enviiromental feature, but when the crankcase dumps more vapors than can be handled by the regular PCV path ... you are headed for a mess.

Just be also sure everything is clean and clear in the PCV passageway.

Plus when you think about it, that's hotter air, and nasty gasses, that are being thrown back into the engine, I can't imagine it's good for fuel economy, or power.

I doubt it is. All of the emmissions stuff under your hood actually reduces the power the motor can make. Your exhaust comes out cleaner, but that is the only gain.