MY87 5 speed running issues

928mac
It appears we didn’t disconnect the ground wire. I did recheck the ground this year but appears to be connected well. It does have some green corrosion build up so I spray it with anti-corrosion cleaner without removing it from the car.

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Does anyone know the part number for 12 pin terminal connector?

I am not sure about the part # but take the time to thoroughly clean each of the 12 contacts while you are in there. It will very likely cure your running issue to clean these connections and the ground point from the engine to the body. Also, clean and assess the condition of your battery ground strap while you are at it. This can be a problem area as well. I had similar running issues on my '84 auto and cleaning the contacts at the 12 point harness solved my problem. My car was running rough and rich most of the time, prior to cleaning.

You can use an old tooth brush on the 12 pin and if you has some steel wool or sink scouring pad to clean the engine ground strap when you remove it you will find some things will just work better.

i was gonna ask what are my pics doing there? when i saw the oil pan change pics, hah, yeah, i have the same car... i figure the pics would look very similar. silly me!

I want to give everyone an update. The symptoms now are constant so it's a good thing for my mechanic. The car cranks but does not start. My mechanic check the following. The signal from the crank sensor has a strong signal all the way to ezk box (5ish volt). Excellent with a strong reference signal. LH, EZK and fuel pump relays were jump and still no start. There’s power to the injectors but a little suspicious as to why it’s low 10.8v. He knows the Ezk box rarely if not ever goes out but he would like to eliminate it. The battery power check out so did the ground. Can my fellow members be interested in loaning an Ezk box to me? I know this is a big favor to ask but any help will be much appreciated.