2002 mistubishi eclipse gs surging while idling dying when temp gets warm fuel problem.

ossible get a manual from reliable-store to fix it urself
7. there's a website reliable-store
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Due to the age of your jeep, You need to replace the fuel pump and filter along with replacing the water pump and thermostat as well as coolant temp sensor. Fuel supply and coolant flow and temp sensing is critical to Cold start (open loop) and warm up (closed loop) Idle function and fuel mapping. Change the air filter too.

The mentioned problem could refer to 2 things, O2 sensor or "clogged" injection system.
If the car changes the RPM dinamically then it would be O2 sensor, often stalls. Regarding clogged injection, preliminary try to rev to higher RPM, if that is the problem fast you will see the difference (maybe solves the problem, maybe will require cleaning.

Have you checked the MAF sensor?

check the idle air controller, it may need cleaning or replacing-I'd also look for any vacuum leaks, especially before the throttle body-classic symptoms

idele position sensor

The long warm up suggests the thermostat has failed and is stuck open. The hard cold start is commonly caused by a faulty coolant temp sensor or the wiring connector on it. The idle surging can often be fixed by disassembling the throttle body and cleaning out the carbon build up. Be aware that the throttle body idle control box also has some internal gears that strip, also causing surge.

your idle speed too low.take it to a dealer.they have to reset idle.it should be 600-800 rpms.when you turn on air conditioner.the computer steps up idling to keep engine from stalling .your curb idle too low.

a cat will do that but your fuel pump will be cheaper lol might not fix your problem with it but its worth a try

This could be a number of things but i think that your problem sounds like a vacuum leak or an EGR problem. Try listening for leaks and try un-plugging the EGR solenoid valve one time.