Well I just got my mac headers installed with delco double plats, msd super conductor wires and blaster coil. I had a miss before, but now its full blown all across the rpm range. Before it was just a miss up top 4000-5200. I figured ok maybe my opti is on its way out. My car has had a terrible surge at idle with the ac on and I could never figure it out. Now that the miss has gotten worse, the surging has also gotten worse. I used a scanmaster on it and came up with a code 18 and also an injector fault. Last night I noticed my plugs were all glowing in blue along with at the opti, could my wires be bad? My car has no problem starting, but it does backfire a bit when I get on it. Anybody have any ideas? Thanks in advance-

 

Sounds like a crossed wire, and 1 or 2 bad injectors.....