My car idles at low RPMs and won't start when it is really hot.

Tiny
ELTALONO
  • MEMBER
  • 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
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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