J jesse_h97 New member Joined Dec 1, 2011 Messages 1 Reaction score 0 Points 0 Dec 2, 2011 #1 1994 5.7 1500 4x4 My Knothead buddy wired his battery backwards and now it has no spark! We have fuel and the fuses in the cab are all good. Where is a good place to start trouble shooting? I was thinking ECM?
1994 5.7 1500 4x4 My Knothead buddy wired his battery backwards and now it has no spark! We have fuel and the fuses in the cab are all good. Where is a good place to start trouble shooting? I was thinking ECM?
