I'm confused I have a tbss ls2 58x with 4l70e trans I'm putting in my 70 chevelle I have the factory pcm e67 the hrness is hacked up its dbw with no pedal a friend of mine have a s&p harness an trans harness for 4l70e for sale but on the instructions say to use a e38 pcm I noticed the e38 pcm is two plug the e67 is three plug can the harness work with my pcm or I need to buy e38 pcm an will it work..thanks any help appreciated.