My car would start after driving for 20 minutes or more when the engine is hot.
example after driving for 1 hour and shut off the car it wont start, however if I put my foot on the gas peddle and crank the engine, it would start, when it start is sound idling rough for a while ( 3 min) then it goes back to normal.

Car drive great, no loss of power.

My mechanic told me it look like the gas I put in is bad, so I add a bottle of fuel injector cleaner into a full tank of gas and the same thing is happening.



There are no codes or Mil light.

Water pump was replace a Few months back

Any suggestion