okay hey everbody, own a 90 525i 5 speed. i'm new here and searched for hours with no avail.
Well this is my problem, my car cranks (turns over) but wont start. My car was running fine and then one cold day , while at a red light, i went to turn the heater on and it killed the car! So i checked the fuses, all looked ok, and wiggled the relays and while wiggling the fuses with the ignition switch on position 3 it came back to life! ok so the same thing happened again but wiggling didnt work this time. so frustrated, i slammed the door with ign. in pos. 3 and that (slamming door) worked!?weird. So here we are at the present and it happened again, but i didnt touch the heater this time. i just went to start it and nothing.
i have noticed this little detail: while driving the car one day it stalled for a second then came back to life.when it stalled the dash display went out for a second also.but only the message display not the odometer display.
now, when i crank the engine only the odometer lights up.but no start.

okay, my car had major electric work done before i bought it. (i think) the main harness caught fire right under the steering wheel. and had to be partially replaced.and probably got hacked.so this is what i know.


please help anything will be greatly appreciated