Will not start when the engine is warm

2002 INFINITI G20
123,000 MILES • 4 CYL
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CHAR YOUNG
  • MEMBER
  • 1 POST
My car will not start when the engine is warm.
I changed the oxygen Sensor, spark plugs and I have checked the car oil and it is fine.
After I have been driving around for a while and stops the car (engine warm), and if I try to start the car after one minute it will not start. (In order to get it starts, I have to start the car with press a little gas pedal).
So therefore I ask you guys, what do you think causes the engine not to start when it is warm? It is very annoying.
When the engine is cold, it starts up right the way.

I did clean the throttle body and IAC, I still having the same problem as I described above.

Thanks ahead for answering my question.
Mar 6, 2017 at 9:49 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
this may be a fuel pressure problem check with a gauge auto parts rent it and you may need an adapter in order to use it. see link.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Mar 7, 2017 at 6:23 AM
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