My engine has a slight vibration at idle. It runs good no trouble codes. I have a cut off exhaust with no muffler and a k&n intake. It doesn't seem like anything serious but I'm just wondering whatnot could be. It's a 2000 single cab 5.4 liter.

 

When was the last time you cleaned the MAF sensor?

 

FIxed it. Changed o2 sensors now it idles way better. I guess 120k miles on stock o2 sensors will do it.