legacy lsi

Ok i will do all of that. Thank you very much.

I had codes read and it said bad coolant temp sesor. And im not sure cuz theres a bad doughnut gasket in the exhaust. And its been doimg it the whole time ive owned her witch isnt long. But in the cold she has gotten worse. Would a bad coolant temp sensor make my car not want to start?

I have a 96 legacy 2.5l n/a. And when the engines cold it wont start. It will try to fire but no cigar. After a while of trying to start she will fire up and run like crap and die. Then she will start back up and run fine. Can anyone help me diagnose the problem plz. I have put new NGK plugs in and gapped about 3 or 4 months ago. Oh and it has 171xxx miles..

I have a 96 legacy 2.5l n/a. And when the engines cold it wont start. It will try to fire but no cigar. After a while of trying to start she will fire up and run like crap and die. Then she will start back up and run fine. Can anyone help me diagnose the problem plz. I have put new NGK plugs in and gapped about 3 or 4 months ago. Oh and it has 171xxx miles..