Before you guys tear me a new one, I know BOV's are not ideal on these cars. This car came with one, and damnit, I can't help but like it. Anyways, my BOV is no longer blowing off boost unless I'm at full boost. It just makes the fluttering sound that it would normally make when you come off throttle just above vacuum. I haven't touched the adjustment screw on it, ever, so that shouldn't be it. I did however have a bit of a nasty run in with a large puddle. My car started running extremely rough for a bit, unable to rev past about 5k rpm, and the check engine light was flashing (it's always on, as I get the P0420 code on a regular basis since I have no cat or o2 sensor on my downpipe). After a few minutes, it actually stalled out completely. I started it back up, limped it into the nearby parking lot, and let it run for around a half hour or so. When I got back in it afterwards, it seemed to be running fine. I haven't had a chance yet to take it into a shop to get the CEL codes checked. Before I do that though, I was wondering if there's any things I should check first? There's nothing stuck in the BOV, as best as I can tell, and the adjustment screw hasn't been touched. Could it perhaps need a bit of lube? If so, what would you recommend using, and how?
Thanks for any help you can give me,