The engine of the 2007 Odyssey EX that I had recently purchased suddenly shut off while driving for ten minutes at 35 mph. It had been running perfectly. The OBD2 codes had been cleared and after I drove it away from the seller the engine light came on. He said the O2 sensors were bad. I put on 2,000 miles with it running perfectly. After it suddenly shut off the starter would crank the engine but the starter sounded different than the starter on my previous 2007 Odyssey LX. Towed it home and cranked it a little more, then KABOOM! - the intake manifold had blown upward off the engine and destroyed. I think it had to be air pressure from cranking the engine that caused this. Is it possible for the exhaust to be suddenly blocked? That’s all I can figure happened. Can a catalytic converters suddenly become 100% blocked? And what other damage would be possible or likely. Thanks.