there is something under the battery that pipes run to. If it smells electrical it could be a ground wire since the ground wire runs around the battery beside the radiator and under the battery to the starter or something grounded to the engine. There is a big black case under the battery which the intake connects to but electrical smells dont come from there. Im thinking break fluid squrting out of a pipe on to something hot under car from the wheel, I don't know thow, just some things for you to check!