2006 chevy express 6.0 codes

[richard2717]

I have a cheap code reader that I was able to pull the codes from my van. Check engine light will come on after about 200 miles of driving. mostly it is 171 & 174 but will also throw 300 every so often. It has a noticeable miss when in gear sitting still. I am not at all familiar with the 6.0 platform. From what I read the 171 &174 are a lean condition and 300 is a random misfire. Where should I start looking or since I know nothing about them would I be wiser to take it to a shop or dealer? I don't want to start just throwing parts at it if I can help it.

I am also having issue with the emergency brake not taking up. One of the cables was broke so I went ahead and bought all new cables as well as the foot pedal control since they were reasonably priced. I can get it to snug up enough I can't turn by hand but once on the ground it is like it is still not on. I don't see any way of adjustment.

Thanks in advance
Richard