Hey guys picked up and 05 cobalt SS. I know nothing about these cars but have had alot of different imports in my past so I am familiar with wrenching. I did have a question the guy I got it from said it has swapped motor out of a new car and that he had problems with it running so he swapped the ECU and when he did it throws a cel for a low voltage to fan and the fan always runs. Any suggestions what is going on?

 

Welcome.

 

Another FL cobalt nice! Not sure about the low voltage issue but theres a member on here called panda tc and he knows a lot lol just search and dig, youll find what you need to know for sure