Ok.......well after replacing the primary and secondary chains, tensioners, both intake (vtc) sprockets, then triple checking everything and spinning the engine by hand making sure everything checked out I put it all back together and It ran for about a minute nice and smooth then died. Now it is doing exactly what it did before, it acts like the timing is off its missing and backfiring and won't run for more than 10 seconds. Any thoughts? Could this be a pcm issue?