97 Caravan 3.0 : MAP sensor fault? Code P0108

97 Caravan 3.0 : MAP sensor fault? Code P0108 250,000 km This has been going for a month or so, the dealer replaced the MAP sensor , the problem came back in a week, the dealer repaired the connector at the computer (no charge) 2 weeks later is has come back with service light, took it back, the dealer said the error was the same as before, but the van was /is working. They reset the error (no charge). Let's monitor Today the error is back, the van is very hard to start, it stalls unless you press on the gas. it has stalled on the wife when driving aswell. .Presently the Serfvice light is back on, it went off earlier today. Any thoughts, it old and this is an intermittent issue which makes it tougher. Russ