2002 mitsubishi eclipse spyder
 

Hey everyone!!!
let me start by saying in the 5 years I've had my car I have pretty much replaced everything but the engine and transmission. The car has 194,000 mi on it and it used to run great. I keep getting a code for the fuel temp sensor. I have replaced the fuel pump 6 times as well as the sending unit. Now it's throwing the code for engine misfire. I just replace the fuel pressure regulator and the car ran great for a day. Next day, engine light came back on and lack of power whe. I stepped on the gas. I am at a total loss for this. My mechanic checked for vacuum leaks and couldn't find any. I honestly can't afford to put any more money into this car and I'm thinking I should just sell it. Any advice please!!!!