'87 325i Runs/Idles Rough, cluster lighting, rear defrost doesn't
Problem 1. started with wife driving to work on highway. She says it just started running rough with a vibration while driving normally. It starts and runs rough. The idle seems to kick up(@ 1000) and then back down to normal idle shortly after I start it up.
I pulled plug wires, with it idling, and the 1st cyl, closest to the fan, didn't change how it was running. Checked for spark, YEOW! yes it's getting juice. Pulled plug which appeared to be wet with gas. hmmm if it's getting fuel and spark why ain't it combusting????
Prob 2. I think this may be a ground wire issue. Half of the instrument cluster(left half) lights up when I turn on the lights, the right half won't. Along with the dark rt half the OBC doesn't light either unless the lights are turned off like during daytime driving. I've been driving this car 4 about 4 months now and on one single occasion the dash lights all were lit and the OBC as well so I know all bulbs are fine but the OBC lighting and half of the instrument cluster are tied together somehow....any clues for me?
Prob 3. The rear defrost has 12v across the leads at the rear window but the defroster does nothing on those frosted mornings. Is there a fuse somwhere in the rear or is there no hope for the rear window dfrost???