4n6pc

First of all let me say I screwed up I was trying to use the factory wires to run my driving lights and when it didnt work I should have left it alone and ran the damn wires....but, I didnt. so while trying to figure out what was the issue I used a harness behind the lower driver side dash (image) as power and although I used a fuse the harness fuse must have been a lower amperage so it blew but none of the fuses are blown under the dash or in the engine compartment ?? and now the check engine light is on and the fuel gauge reads more than full all the time with the key on or not?? anyone have any ideas what may be the issue? thank you as always.....