97 firebird formula hard to cold start

Try loosening the bolt on the bottom of the distributor crank engine then turn the distributor a little it should advance or retard depending on direction you turn it you will be able to tell.

Duplicate question

timing.or cam shaft senser

this could be a bad fuel pump that has a problem from sitting over night or when it cools down enough.the armature in the pump may be worn and when its cold it has a hard time turning the pump because of it being worn and when it gets warmed up enough the clearance is closer than when cold and works fine.

check fuel filter

Check all the grounds for the running lights

I believe you have a throtle body correct? IF so you have poor fuel pressure, plugged filter of injector.If by some miracle you have a carberated engine the the fuel is leaking from the bowl. Get a carb rebuild kit.

have you checked the hall effect sensor? that is possibly what it may be

this is a battry problem you can charge the battery long a nuff to start after motor is running but you have a dead seal i would recommend wall mart best price and warrenty if you replace the battery with there 2 yr warrenty with-in the 2 yrs you will never hafe to but a nother battery for the life of the vehicle////// if this is not your problem i would say your coil pack is cracked

The idle speed is not adjustable, it is computer (PCM) controlled, you can turn the screw for the hard stop, but the computer will just over ride that adjustment for the most part, what I think you may need to do is clean the throttle valve and the idle speed control air bypass valve, use carb spray, spray it in the intake with the engine running use the at least 1/2 the can, the engine will try to stall, keep it running, after you are done disconnect the battery for 10 minutes, reconnect and drive a few days so the computer (PCM) can relearn your driving habits and set the idle correctly based on your driving.