My car lost power the other day cruising on the highway. I was about to pass a car and all of a sudden i slowed down i made it all the way home but didn't have the power by JDM GSR in EK should have. I'd drop into second and RPMS would stay at 5k no matter what.....The next morning i was gonna go to school and the car wouldn't start. It cranks and it wouldn't turnover....an hour or two later it cranked slower.....i took the battery to advanced auto parts and it tested good and they full recharged it........still wouldn't start. So I thought it was the alternator. I've taken it to Advanced, AutoZone, and a Shop and none could test it...... I'm thinkin bout just putting the alternator back in....jumping the dam thing and taking it to the shop. I put the swap in a few months ago and everythings been fine for the most part. I'm pretty sure it's the alternator, but is there anythin i should look at. The radio and stuff would come on I could hear the fuel pump priming. I changed everything over wires/cap/rotor during swap.....What would cause my car not to start......any help is appreciated need this solved quickly.