I just started trying to use my TWEECER RT on my new to me 90 mustang. I noticed in the data logs that theKAM data is always 1 and I know Im not that good at tuning. I checked for check engine codes and one of the codes I got was KAM check failed. I checked to see if i had any bad fuses and didnt have any. Then I looked for a wiring diagram and found that KAM power is supposed to be at pin 1. I checked for power at pin 1 with a multimeter and had 12 volts. dose this mean my eecm is faulty? Is there more I should check