Power FC help

Hey guys, I am having a huge issue with the Power FC D Jetro I just bought. I was hoping some of the more experienced members on this site (Dan, Varun, Dustin, Gonad…) could help me out.

I went to install the PFC on my USDM convertible with a redtop sr and completely failed. The car cranks but will not turn over. Also, the commander is not turning on. This is just a plug and play ECU so I was confused. I plugged the stock ECU back into the car and it started up fine.

I decided to try the PFC in my Silvia which also has a redtop sr. I bolted it in and it works perfectly; commander turns on and everything.

Does anyone know what is wrong?

your vert wiring is hacked, try getting new harness!