My CEL started blinking the other day & I'm not sure what would be the cause of it. I've heard it's misfiring but how, I've done a tuneup, valve adjustment & head is rebuilt. This was all done before it started blinking. Any of you guys had the same problem before?
youre killing your cat, thats why its blinking. Do another valve adjustment (leave it over night), and maybe you have a sticky valve, a bent valve, bad injector etc.