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I had similar symptoms a few months back. Car would drive OK for a few miles and then suddenly die. Cranked OK but wouldn't fire up. After about 5 minutes it would start again. Sometimes it would run for 10 or more miles then stop. Thought it was the CPS at first but noticed that the tach would bounce slightly on cranking. Turned out to be the fuel pump relay which was losing it's ability to generate a strong enough magnetic field when the coil was hot and subsequently letting go of the contact arm breaking the power circuit to the fuel pump. (I took the relay out, removed the casing, fed it 12v and watched it let go of the arm after a few minutes.) This turned out to be a very cheap and easy fix in the end. Now I carry a spare relay just in case. Everyone suggested it might be the CPS at first due to the lack of CELs/codes. The clue was the tach. Guess I was lucky.
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