Yes PCV- fingures hit the wrong order of keys. I don't think that it's bad but the engine has 100k on it since being rebuilt. I just thought that I'd check it. The check engine light has been on for a very long time. It's been a while since I checked the codes but I'm pretty sure that one of the codes said something about the PCV valve. However, I did have a question about the awful smell that it puts off while idling. It smells like it is running extremely rich and when we come to a stop all windows go up! To be honest, I've never done anything to this rig other then change the oil every 5k, air filter every 10k, and air the tires. It's been a great vehicle but she's starting to idle rough and gas milage is dropping off from 12mpg to 9-10. I should mention that it has an automatic transmission and we drive between 6,000' and 9,000'. Any tips on getting better milage and getting her back in shape? Thanks in advance for the past and future help.