That particular injector code is for a wiring issue---bad wire or coil. I don't think you have a FICM problem because the Predator will show those codes. I use my predator for the same thing but I DON"T run those tunes because they are very destructive. The mileage is nice--best I ever got, but the timing is toooooo high and WILL cause you issues eventually. I speak from experience here. I would check the harness carefully for chafing first.