hi guys im new to the forum.
ive been having a look at amates bmw that wont start. its a 4cylinder and it only seems to be sparking on two cylinders and its defo getting plenty fuel. it had apparently been a bit iffy to start after it had been lying for a week or so then when he was driving it it cut out and wouldnt start and it hasnt started since.
Its getting a good strong spark on two cylinders and a very weak almost non existant spark on the other two??