Wiring problems of the 2011 Ford Fusion

Heater/defrost blower speed controller and associated wiring failure causing wire smoke coming out from under dash board. If I didn't turn off climate control, I suspect it could have escalated to an electrical fire. Without defrost working, it is hard to see out of windshield.

I was driving on a busy city street during rush hour when I noticed the car jerking when it changed gears. The rpm would shoot up high then back down while losing power to the vehicle. I managed to get to an auto advance store where I had a diagnostic done since my check engine light was on. The diagnostic came back with code po455 twice and po457 twice. It was then explained that too much air was getting into my fuel system. I proceeded to go to the Ford dealership, which was a half mile away. On the way, my car continued to jerk and loose power and some points. Then everything digital which one displays my mileage and the other displays how many mile till empty displayed intermittent lines and the wrench illuminated on my dashboard. At this time my car was on but quickly lost power to go forward. It almost got rear ended by the car behind me. I put on my turn signal and I coasted to the side of the road, turn off my car waited a few minutes the turned back on and put it in drive. The car would not move forward. The engine just revved up like I had it in neutral. I put it back in park then put it in reverse. The car would operate in reverse. Had to have car towed to dealership. Three months prior to this incident, I had to take my car to the dealership because of excessive battery acid on my positive terminal that had eaten through the wiring harness. Had to have harness and battery replaced. I still notice issues of battery acid accumulating around the screws on the battery harness and positive lead again.

The vehicles wiring is heating up and I'm concerned it may start a fire, also the car occasionally turns off by itself, I would like to to know if there is a recall on my vehicle, please reach out to me as soon as possible.

The hvac blower relay or controller overheated and began smoking melting the housing for the wiring.

This happened sometime back, however it could be related to your current investigations. When I had approx 1900 miles on the car and while I was going around 70 mph, the car went into limp mode and I lost all throttle control. After nearly getting hit from behind from a truck (cause I lost speed), I managed to pull over to safety and saw I had no throttle response. I turned off the car, and then turned it back on to find it out it wouldn't start. So I turned it off once again, waited 20 or so seconds, and turned the car back on and proceeded to work. Later on that night, I pulled the codes off the system and kept them as pictures (p2104 and p2112) just in case the codes cleared (cold cycle). Sure enough I go to the dealer the next day, no codes found and there is nothing they (Ford) can do. I showed them the pictures, however I was still turned away. Later on at around 7500 miles, this happened again and this time I was close enough to the dealer to run the codes. They performed TSB 11-4-23 on the engine throttle body and ecu, and installed a new wiring harness. Little did I know at the time, but this states that under rare conditions the engine will emit those codes while the wipers are on.