My friend was given an '01 grand prix 3.8 and was told it had issues. I drove it to my house for her so that i could work on whatever was wrong with it. On the way home i noticed it that it was misfiring repeatedly and was vibrating pretty badly. I have narrowed the issue down to injector #1 and injector #2 (the two closest to the passenger side of the car) not receiving any power. The SES light either doesnt work or has been removed.. I'm thinking the PCM is bad... any other ideas?