(Bear in mind battery has been out for approx. an hour during all this)
Started car. Started instantly. Never started that fast before. Then went to drive to bf's house and 3 mins into journey at a RB car cuts out. Power steering stops, scary. Then every time after that stopping would cause the car to cut out while the battery was still running and all lights and radio on. Got it to bf house but had to drive all the way in 3rd to keep revs high. I noticed freewheeling kept the engine going too. Brakes on - car cuts out basically. Wasn't idling at all but would start perfectly.
I suspected stepper motor (had to explain to bf what this was, he was annoyed as to why the hell we need one

So my question is, do you think both are related, or is it a big coincedence? Did leaving the battery out for so long reset the ECU and maybe that caused problems with the idling? Is there anything further I should do now?
Thanks guys.
PS Losing power steering control is possibly one of the scariest things ever....
