BMW e30 Distributorless Ignition help? Please?
This has not been a good week for me and my BMW. (I have a 92 e30 model - the last e30 made). I went to move it, parked it, and went to move it back not half an hour later, and it almost started...
Cranked it up, sounded like it was going to turn over, then it failed. Now it rotates, but won't turn over.
My boyfriend and I checked the easy stuff - battery appears to be good, fuses intact, sparks and wires look good, etc... now please forgive my lack of car expertise. I know a bit, bit not enough. So, after eliminating the easy things, we tried testing the ignition, by pulling out a spark plug wire, putting in an older plug, grounding it and starting the engine. Instead of the blue sparks, we got pale, intermittent yellow ones. He said the sparks weren't even consistent - sometimes we didn't even get any sparks.
So, we are thinking it's the ignition at this point, right... is that reasonable? We went to test the coil to see if it falls within the ranges specified in the Haynes manual - only there isn't one. This one has one of the distributorless ignitions...
Great... except for the fact that I have no idea how to test it. Or maybe it's something earlier in the system. I don't know, and my brain hurts from trying to dig up data on this ignition system that I know nothing about.