mine comes on so often to, and i get EGR valve, and auxilary emission, neither seem to be effecting my car though, ive replaced EGR 2x, and ik the aux emission is gas tank wholes from AMP. and yea, a fuse will do that... also, mite be regulator stuck in alt, mine did that for a while, started up on first turnover, but died in 5sec, and reapeated that process. a new High output alt and a Optima battery fixed that for me(audio system made alt go bad i beleave)