wont start 1994 325
 

Car was running good then it stop on a rainy day (at this time i dont have a scanner). Crank but nothing, changed knock sensor and crank sensor, still nothing problem was ECM put a used one now car run but rough check the plugs they are all black full of carbon. I purchase a scanner thru ebay (v1.3.6 rs232) but cant get a reading on the PC, i plug it on the car an 2 light comes on.....any help out there??? thanks

Teddy, here is some light reading that will help http://www.pelicanparts.com/BMW/tech...de_Reading.htm and http://www.pelicanparts.com/bmw/tech...DME-Repair.htm