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-   -   03 sonata(2.4) will not start unless gas pedal is tapped, then runs rich (https://www.hyundaiforum.com/forum/hyundai-sonata-19/03-sonata-2-4-will-not-start-unless-gas-pedal-tapped-then-runs-rich-11680/)

desertridr013 Oct 25, 2011 10:26 AM

03 sonata(2.4) will not start unless gas pedal is tapped, then runs rich
 
03 sonata 2.4 died on the interstate, got it towed home, changed fuel pump, crankshaft position sensor. will run now(rich) as long as I keep the rpm's above 1000 or so. can not figure out what the problem is, there are no codes. I am thinking throttle position sensor, oxygen sensors, idle control valve, or catalytic converter. Any help would be greatly appreciated, have been screwed over by a few local mechanics and do not want to have it towed somewhere else just to be taken advantage of again.

another thought is a stuck exhaust gas recirculation?

beatea1250 Jan 26, 2012 07:38 PM

I Had this issue with my 2003. The issue was the fuel pressure regulator.


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