Ok I know you guys posted this a few years ago. Im new here to [FJ], bought a 2001 Focus ZTS, I have to say, I love this little car. Its like owning a small 4 door Mustang.
Im having a problem with the Infamous Foglight Mod. After I did the mod I started having problems with electrical systems on my 01 ZTS. Like my radio and rear defogger quit working and two days after. When I would shut off the ignition key, then restart the car the radio and rear defogger would then work again. I also experienced an issue when I did the mod (after a few days) my Service Engine Light came on and it threw a code for the Fuel Sending Unit. I took the wire out and replaced relay, unhooked battery for five minutes, no Service Engine Light for a week and no other problems. Is it possible that it could be my battery, altenator, or just a bad ground. Any answers?