looking for my fuel filter. fixed the overheating problem, then fixed oil leak. now my car runs , but has no power really. I press the gas and I go about 10 miles an hour. I know I need a new muffler, I found out by opening my trunk and my 2 carpets and a 1/2" thick rubber mat were melted together. Very scary. please need to try to replace it> Thank you

 

update.reading up on fuel filter & it is saying, "anytime the battery is disconnected the programmed position of the IAC valve pintle is lost and needs to be returned, by performing an Idle Learn Procedure (need a Tech 1 or equivalent scan tool. Has anyone heard of this or done it? Please help. MY battery has been taken out and charged.