It's not the battery...Granted, I got a new one cause it still had the original and the cranking was low. The tuner won't recognize the car now and all electronics work so it's not a fuse, unless the ECU has a seperate fuse but I'm pretty sure it's the same as some other things. The car does nothing ...

The important stuff:

Serial: d007798
Part: u7144 svt_focus
Version: v.9r04
Hardware: UNIV_REV2
Part Number: 222912
Vehicle: 2003 Focus SVT

The other day I was putting this tune back on after having the factory tune on for a while. I decided that the tune that came with this was better, so I went ...