Happy holidays to you all!
@idosubaru @john in KY @DaveT @el_freddo @naru2
This is where I am now :
I fixed the alternator's wiring by adding the line labeled "S" that stands for "voltage sense" this was cut and left on the side.
I reattached the wires I had cut suspecting they were shorted. These wires were all fine all along.
I prepared 4 new injector harnesses by cutting the old ones and soldering the new ones then using heat shrink on their solder joints.
I fired it up.
It started.
But with a clanking noise, I let it run for a good 10 minutes. And then I noticed it smoothed out, at first it was like a wave, it would run ckanky then I would hear the typical EA82 purring. In the end it really seem it got a lot better. I noticed injector #4 still leaks fuel, but at a lower rate. When putting a long screw driver it sounded as if that injector 4 was clicking.
The computer (damaged after a short when attempting to find the injector pulses) works good enough to run the ignition and distribution and in fact, it gave me code 42. Very clear 4 long pulses and 2 quick ones. Reading about it, it is related to "Injector" stuck open or closed. Which makes all the sense considering all the issues with injector 4. Perhaps that injector is faulty despite thought of being fine otherwise.
However, reading on USBM, someone mentioned that code 42 refers to "Idle Switch" this would be consistent with the car's behaviour now. After the auxiliary air valve was released of keeping the idle still, the car couldn't maintain an idle any longer. The suspicion now is that the pin in the ECU that controls the iddle switch is fried. (Most expected)
With all this, I'm calling it a massive improvement! The next actions include an oil and filter change, a swap and test of the injector #4. Waiting for the new ECU that is on its way. And fixing the relays for the radiator fans. Yes, I eliminated the fan clutch and placed 2 radiator fans. However I need a separate relay for the now main fan. It drags too much current for the current auxiliary radiator fan.
I'll keep the updates coming