I’ve owned a 91 318i for a few months it has 370xxxkms, I’ve had no issues with it until today I went to go to work and it wouldn’t start so after work my mate came over and tried a bunch of wiring things, I thought it was fuel problem and we disconnected the battery then left for a couple hours plugged it back in and now it’s starts fine. I guess I’m just wondering how unplugging the battery fixed my problem the car would crank and everything sounded normal but wouldn’t start then after disconnecting battery it works?