I have a '94 Cobra with a few mods. The problem I am having is that when the ambient temp is above 75 deg. or so, and I shut the car off after it has gotten up to operating temp, say to run down to the convienence store, when I try to start it up, it starts fine but idles low. About 200 RPM. If I turn the A/C on it dies. After I drive it a while it will usually clear up, you can feel a noticable surge in power when it does. After it clears up it then idles fast, about 1100 RPM for a while, then the idle drops back down to normal and runs fine the rest of the time the car is running. What has me stumped is that it doesn't do this all the rime. It might go a couple of weeks with out a hiccup even in hot weather. Then it will do it for 3 or 4 days every time I drive it! Its not a surging idle when it does it. It's smooth, just real low and you feel a loss in power. I am getting codes 311, 314, 332, and 543 with my code scaner. I'm not sure how to fix any of them. Any help is greatly appreciated as I have tried numerous suggestions to fix it.
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'94 Cobra 1 of 558 black with saddle leather. Lunati cam; MSD Pro Billet; Centerforce Dual Friction; chrome shorty headers; off road x-pipe; Flowmasters; 3.55's; K&N; smog pump eleminator; tubular upper & lowers; spherical bushings; solid motor/
trans mounts; '95 Cobra R wheels.
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1994 Cobra low idle after warm-up/shut down/restart 
