ok guys heres a challenge for ya ive tried everything with my bros EF heres the problem we got an EF 3 months ago and had that blue interior so we decided to just swap the interior to Si interior so we started with the dash and after that was done the problem started...... the car would turn off when we did one of the following 1. use Right/Left Turn signal 2. hit the emergency button 3. push in brake. so far we swapped the brake switch the WHOLE ENGINE harness as well as the Dash Harness im completely lost and gave up on it we also clean all the ground swapped the fuse box and swapped the main relay swapped the alternator got a new battery so idk what it is anymore any help is appreciated thanks

 

Go over your grounds and check every single one of them again
This is the first thing I would do

 

i did twice and even cleaned em the car turns on and sounds strong but the moment u hit that button,brake or turn signal bam turns off

 

You must have something crossed with another plug. I dont see how anything else would make your car shut off when the brake is applied???

 

ive had this happen before check all your grounds. on my car it happend to be the ground between the tail lights under the panel just belw the hatch. it got loose some how... and when the brakes or blinker where activated would short the fuel pump.

 

Sounds intresting ill give it a look today thnx man ill keep u posted to see if its loose

 

its a ground bro..had a similar problem

 

DUDE IT WAS THAT GROUND !!!!!!! it wasnt even bolted down !!!! OH MAN THANKS SO MUCH BRO !!!!!!!

thanks to all u guys who gave me their input now off to go put back the whole dash lol