hello guys i have a 02 escape v6 3.0L and i have several problems that i cannot figure out. recently i had a very rough idle and a plugged cat so i changed the upper and lower intake gaskets and "fixed" the cat if you know what i mean and that fixed that but now i got other problems ive had since i bought the car at a wrecked car auction. here is a list lol

1. all brake lights dont work if i press the pedal
2. i cant get out of park without pressing the interlock manual release button.
3. i have a cel code and it says my brand new dpfe valve has high voltage.


1 issue: i looked at the fuses and they were blown, so i replaced them and they still dont work, checked the light bulbs and they are fine. i heard of a bad ground that can be causing it and that wire is under the battery tray and i cleaned it and that still didnt fix the issue. there is also a supposed fix and its that its a mis adjusted brake switch. how can i check mine/ adjust it?

2nd issue: i looked for a fuse for the shifter and i cant find one lol i heard i need to adjust something in the shift assembly and im wondering if someones can shed some light for me on that.

3rd issue: let me tell you the story, when the car was running fine one day it lost power to go uphill and long story short i blew up 3 egr valves and i got the car looked at by 3 people and they said it was a plugged cat so i took the cat out gutted it and put it back on because cats are expensive and i dont want to risk plugging it again with a new one so i got a new egr, new dpfe valve and got a used egr tube. now the car doesnt violently idle and shake the whole cab but i got a code which says its a high volt dpfe. idk whats wrong its a new dpfe valve from ford. i also looked up it could be a stuck open egr valve so i troubleshooted that by applying vacuum to it and the car dies so that means it works. could the problem be because the gutted cat?

can someone help me out? i would appreciate it alot! thanks