My e30 has cropped up a problem that has me stumped.
Basically, it idles fine when cold, but rough when warm. Then, sometimes when it's warm, the car will randomly die for a second... like, the whole engine shuts off then starts up again. If it does it while it's idling, the car usually dies. If it does it while it's running, it just feels like a really bad misfire.
My only thought is the crank angle sensor. Could it be the AFM though?
Basically, it idles fine when cold, but rough when warm. Then, sometimes when it's warm, the car will randomly die for a second... like, the whole engine shuts off then starts up again. If it does it while it's idling, the car usually dies. If it does it while it's running, it just feels like a really bad misfire.
My only thought is the crank angle sensor. Could it be the AFM though?