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A engine guy once told me when you shut the engine OFF it will always stop at the same point in terms of the crank position. Could just be 35 years of starter engagement hitting at the same spot on the flywheel. Since you got the flywheel already out, I'd take it to a shop and have them resurface it. True it up.

If it RUNs with the jumper, that's next step.

BORG cube relays are pretty tough, but can also be the problem. Remove FP relay from its relay block and jumper PIN_1 to PIN_4. Does vehicle START and RUN?

US flag hanging on a highway overpass. Military convoy. Falling Rocks sign.

Nicely done.

Ship still stuck.

Radio/LCD clock illumination relay

TPS closed throttle voltage is a static test, used for adjusting TPS. TPS might have a flat spot (1500_2000rpms). Dynamic test requires moving TPS slowly between its lower and upper limits looking for any faulty spots. This type of testing would need analog voltmeter. Some DVOM have a BAR meter under the numeric display and read voltage 10 times faster than the numeric display. Could possibly find your flat spot there, if one does exist.

Flip your grille, its upside down. Its a MJ known issue.

Did you find the connectors D1 & D2? D2_4 pin is IGN SW feed (I1). With DVOM connected between D2_4 and Battery GND, KEY OFF, your voltage reading should show 0vdc, otherwise your IGN SW (I1) feed is shorted to voltage (B+).

With ENGINE RUNNING and KEY OFF. Measure for B+ at D2_4. Should show 0vdc.

Find that single red wire and make sure its not plug into anything except the Engine Compartment Lamp, if equipped. Wire is HOT at all times.

Double check it.

With KEY IN ignition switch wiggle it. Any slop? Is there extra weight on your key chain?

Swap your relays around with one another. Checking for bad fuel pump relay.

Can you keep it running with say starter fluid or gas?

Did it ever run good with the new CPS?

MS1700 is a tester and the other is a diagnostic manual. Probably Ebay only items. Pin wires for continuity from point to point and do what @cruiser54 saz. Might have something under the DIY section.

On NIT's website, under TCU Datastream, he show ??? two times. One IDK and the other when Torque Converter_(S3) is FALSE. Could be a good starting point. NickInTime (NIT)

_mj1988electricalmanual_1.pdf

A pump can be deadheaded for short periods of time, especially if pump has build in slippage (re-circulates).

and require a fuel return line. Do carbs require a fuel return line?

Jet Stream stuff, even though I'm not sure what it means (more predictions), can be some kind of early warning system. https://weatherstreet.com/models/gfs-jetstream-wind-forecast.php