91 eagle talon wont idle when cold. idles fine when hot

May not be getting enough fuel to the engine

Maybe a bad idle air controller on the throttle body. That is used to keep the car idling right when stopped.

there is an idle control valve and an air flow meter that should be checked.check all the wiring harness and connectors to the crank and cam sensors.

sounds like a faulty ecm.

No its not ur pcv or ur vacuum.

There is a little sensor on the bottom of your throttlebody called ISC

They almost always go bad in these cars.

You can find ones that are good used at mitsubishigraveyard.com

they also can explain to you how to test the ISC.

When I was building my 97 GSX, I ran into this same problem. I found that I had a bad vacuum leak. Of course, this was after I had done a tune up, changed the fuel pump, injectors, etc.

Let it warm up without driving. Set you idle a little higher by adjusting the idle screw on the throttle body to about 2500 or so. If it does the same while sitting then you can start checking for leaks. Acquire a can of starter fluid from your local auto store. Spray in different areas, short burst (DO NOT blanket the engine area) around the engine compartment, 1 at a time. If the idle changes then returns that is the rough area of the leak. Look around that area and see what it could be. Then you can start fixing the problem.

If not then you will need to get a vacuum tester. You can rent them (Autozone, Advance Auto, NAPA) or find a shop (though that would cost you more) that could check it for you.Follow the directions on the tester.

drive it off a cliff!

Check all your vacuum hoses especially the larger ones like the one from the brake booster to the intake. Check them for cracks of see if they're broken. Also spray WD-40 or carb. cleaner on the intake manifold where it meets the cylinder head. If the idle changes, you have a vacuum leak there.

check for a dirty injector

if its only off by one tooth it won't cause any damage.