1991 ae101 toyota levin wont start!!

[Ace7254]

First off this is my first time on the forums so please suggest and give feed back to my post.

I own a 1991 AE101 toyota levin,4AGE 20V silvertop and it has been converted into a speedway/dirt track car, and the Battery has been re located to the passenger side of the car and to fit a seat in I obviously had to re locate it again. However in the process of installing the seat the Battery kill switch had got in the way and without thinking anything of it I disconnected the switch noticing 2 wires that have been wrapped around the switch terminals these both fell off while removing the switch (I left them aside) I then went to start the car after reconnecting the Battery and it started but had a very low idle I tried revving the engine but the engine did not change in rpm or sound so I turned it off within 15 seconds noticing something wasn't right, next I tried to start the car but it just kept cranking, I have checked fuel pressure, ignition coils,distributor,fuel pump fuzes (not relays) and have also sprayed a starter aerosol called start ya *****.  and I am now stumped I have no clue what else could be wrong, the dash isn't blinking any error codes and the only other thing I can think of that might be causing the problem is the air flow meter which was changed with another afm from a scrapyard levin when I first plugged the afm in the fuel pump made a very loud whirring noise when the key was in the on position and made the car idle low 800 rpm but the car had still started and ran fine it was only since I disconnected the battery the problems arose. Any help or suggestions would be greatly appreciated if I can not find the problem then I will take it to a mechanic in the next couple of weeks Thanks in advance!