Ok I am pretty sure I know what is going on. I just got my heads/cam/intake installed nd im getting misfires codes. My guess is that it isn't tuned and its probably fouling plugs. I just need a second or third opinion on the matter before I dig into it real deep. Also getting the ABS code. This one I have no idea why this one is coming up.

 

Yes you would need to tune. Now what code do you have in abs. I believe the abs may be just shutting down do to the running problem.

 

p0300 for abs and p0110 for misfires

 

I think you are refering to c0110 abs pump motor fault. I had same code that ended being the ebcm. But first you should check all power and grounds to the ebcm. Also make sure good grounds g101 and g106. One of those are on top of left fender forward of abs/ ebcm asembly. The other I don't recall. Make sure the rectangle shape plug that conects to ebcm the pins look good and all is in place.