whats wrong ?

[jeremyc653]

okay so I did a fuel pressure check today and my st passed with 65 psi and held it for 10mins after it was turned off. The problem with my st is that when I go to start it 75% of the time she wont start on the first crank unless i push the gas pedal down and sometimes not the 2nd or 3rd time. A few times i have turned the ignition 3 times to build pressure and it will start but not all the time i have replaced spark plugs and wires and 2 o2 sensors. where should I go next?

 

[John_Rock]

Check your IAC valve. I have a sticky IAC valve on my Limited and when its sticking I have to push the gas to start it. Then after I get it running, and it idles low and rough, I go whack the IAC valve with a screw driver to get it to unstick.