Running Rich/misfiring

[jbraswell]

So.. I had a TCD intake on my car for about 4 days. It was nice, sounded good, ran great, but it had a cheap autozone filter on it, which was pretty dirty now that I look at it. Well, night before last, I turned on my car and it was having trouble starting. It finally started and ran extremely rough (sounded like a tractor), and it was running extremely rich. I let it run for about 20 minutes and the idle smoothed out, although still surging a little. After letting it warm up I tried to drive it around a little bit and it was misfiring pretty badly. I took off the intake, put the stock air box back on, checked all of the intake boots and everything looks fine. It seems to run worse now though, it misfires like until it warms up for about 20 minutes, and then it still does not run right (runs rich and is down on power). Im thinking something got into the intake, Im about to go check the current on the air flow sensor right now.. Any other suggestions?