Snickershane

I just got done hiding my traction control and my wires on the passenger side. I broke a vacuum line when I did it and taped it up the best I could until I could get to the parts store. It ran really good after I was done but the next day after it was warmed up after driving it for a second it started to have a rough idle. I assumed it was from the vacuum line so I replaced that. It didn't fix the problem. It was always a little temperamental with the idle but not nearly as bad, just sometimes when I brake hard it would hesitate. Has anyone experienced this before? I have new plugs, wires. It was throwing multiple misfire codes after I did my long tubes and ls6 intake. That was the same time I did my plugs and wires. She has 140,000 miles. Before I did the mode it didn't have any codes and ran great.

theskitztikwon

iTrader: (18)

Did you have it tuned after the mods?
Did you do the pcv conversion aswell?
Make sure no line is unhooked on the pcv system aswell.