Dealer thinks it may be a cam sensor. Car is stalling randomly while idling and sometimes won't go right away from a complete stop.

I'm sorry it's taken me so long to answer. The check engine light came on twice. The first time it threw a code for the throttle body, we fixed it, it still stalled. The second time was for the MAP sensor, fixed that, still stalls. So far we've done a new throttle body, cam shaft sensor, TIPM, ignition recall and they've checked all the wires. The dealership has no clue at this point. I say something for a cracked flex plate, but the van has a rough idle no noise. I'm at a complete loss.