Mechanics

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

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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ElTalonO
July 12, 2012.



Carb or EFI fuel system?

Rasmataz
Jul 12, 2012.
EFI fuel system I believe

Tiny
ElTalonO
Jul 12, 2012.
Check and test the electronic air control valve and also the fuel pressure if its within specs-start here and let me know

Rasmataz
Jul 12, 2012.
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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KHLow2008
Jul 12, 2012.

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