I have a 03 odyssey while driving it shuts off completely, after 30-45 minutes later it will starts again. This happens 2-3x while driving,Any suggestions or comments will be greatly appreciated

 

Looks like no replies but just happened to me twice in 3 days. 2003 Odyssey with 155k miles. Seems to be running fine, but engine stalled twice recently, both when came to complete stop at stop sign. Started right up again and proceeded without incident. Took in for regular service between 1st and 2nd stalling. Mentioned to service staff but they found nothing.

 

Could be a number of things. Do you notice a lack of power? Rough idle? Vibrations?
Since it happens at a stop, it could be Idle Air control valve (IAC). If the engine is not getting enough air when the throttle body is closed then it will stall. I would check the intake filter and make sure its clean and free of any objects that would restrict or block air flow.

 

3 quick thoughts. 1) loose connection to fuel pump relay My 2014 would not start after cranking. turned out to be loose connection on prongs. twisted slightly and plugged in and started ever since. 2) electronic component overheating and zapping its brain. I had a ford that the heat dissipating grease between the electronic modual and the distributor mount dried out. it would die most randomly and mysteriously. a small $3 tube of grease replenished the grease bed and no more dying on the street in traffic. 3) Alternator is not charging but intermittently. You run on battery until it drains so that car can't run no more. But that is unlikely but some thing to explore which may lead to real cause.