I have an 88 Lebaron Turbo 1 automatic, with a aggravating electrical problem, and this is (was) my daily driver, any help is greatly appreciated! First noticed I had some problem last summer when I was driving, and the tach started going haywire. Was no other problems associated with it and it seem to straighten itself out. However, starting a few weeks ago things started getting really weird. The engine would misfire, along with the tach (and speedo) going crazy. At the same time I noticed it was overcharging at 16+ volts. It cutsout, and misfires when I give it the gas. It shutdown on the road once, and then again another time, and after I had to tow it home, haven't been driving it. I bought a new distributor pickup, and when that didn't help, I spent $130 for an ECU. Didn't help a bit... in fact, worse, as now the alternator isn't charging at all (not worried about that, as I hooking up an older reg outside the brain). Oh, I checked the coil, and the secondary winding was 18k ohms, and seemed a little high, so replaced it with a new one, however didn't help, so I returned it. What I'm thinking, but could be wrong, as so much is affected, a ground to the ECU isn't good. There are 3 ground wires on the lower ECU plug. I used my meter, and they all check ok to ground. Does anyone know where these are actually grounded, so I could check to see if they are 'good' ground. The lower connector has larger wires (more amperage), so the most important for grounding. What kind of electrical problem would cause all this, including both the tach & speedometer going nuts??? When it's idling they don't do this... only when I give it the gas. Anyone got any ideas????