MY CAR IDLES AT LOW RPMS AND WON'T START WHEN IT IS REALLY HOT.

  • Tiny
  • ElTalonO
  • 1991 Honda Accord
  • 180 miles

The rpms at an idle are just under 500. When it gets hot the car will turn over, but never fully start.

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Thursday, July 12th, 2012 AT 2:50 AM

4 Replies

  • Tiny
  • rasmataz
  • Member

Carb or EFI fuel system?

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Thursday, July 12th, 2012 AT 3:01 AM
  • Tiny
  • ElTalonO
  • Member

EFI fuel system I believe

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Thursday, July 12th, 2012 AT 3:06 AM
  • Tiny
  • rasmataz
  • Member

Check and test the electronic air control valve and also the fuel pressure if its within specs-start here and let me know

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Thursday, July 12th, 2012 AT 3:35 AM
  • Tiny
  • KHLow2008
  • Expert
  • 41,997 posts

For the idling, the IAC and throttle body are the most likely culprit. Cleaning them and readjusting the idling speed is recommended.

As to the difficult/non-starting when hot, check the PGM-FI main relay. Try resoldering the circuit board and retest.

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Thursday, July 12th, 2012 AT 7:42 AM

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