vehicle came in as a no start no fire ohm coil found it open replaced coil got good fire no pulse wiggled cmp veh started and ran drove great shut it off customer came to pick it up started and ran really rough popped a cmp code changed the cmp same game no start found a post on warped valve cover replaced valve cover and cmp same game nothing remove cmp hold down bolt car runs great tighten bolt car dies and pops a cmp code test wires b+/b- no continuity that part checks good ohm sensor 449.0 ohm within the spec of 400/500 ohm cam timing is good im at a loss please help

Arthur Poulter
Technician/Shop Foreman
Nick & B's Auto Truck
Anderson, Indiana, USA