Hey fellas, my brother has a problem getting the engine to turn over. When I crank it, it seems like it'll run but just dies. We've checked the tps sensor with an ohm tester and it checked out just fine ranging from .8 to 4.45 with the throttle eased open and closed . We thought it was a spark problem so we changed the plugs and cleaned out the distributor cap. We've also changed out the fuel filter thinking it was dirty or something. The fuel pump checks out just fine too. We're out of ideas. Anybody have any clue as to what could be the problem?