99 Ford Ranger 2.5L 2WD

Every once in a while, a slight wobble will develop in the steering and will gradually get worse. Also, the brakes will get really stiff as if there is too much pressure in the lines. While this is happening, my acceleration drops drastically. I have to pull off the road and shut the engine off. At this point, I can usually smell something that i believe smells like something electrical is getting hotter than it should. Not that anything is on fire, but something electrical is hot.

After I sit for a second and then restart the engine, the problem goes away and everything runs smoothly for a a few days. Then it suddenly happens again.

I have put it on the computer and only get a code for Bank 1 System Too Lean, which I am still trying to fix.

Anyone have any suggestions?

Thank you in advance.