Hey guys, I just picked up a beautiful black 750iL. 105,822 miles on it. A couple issues, looking for some help. First of all the car backfires quite frequently. I read it'll do that from the ASC but as far as I have read, ASC wasn't equipped until 1990 models and up. A buddy of mine says the timing is off, which I thought was impossible because I read that the timing is electronically controlled. Other than that, she needs new plugs, fuel tank sending unit, and a transmission filter change. If I could get any help, that'd be great guys.
'89 750iL 12 Cylinder Beast, backfires frequently.
