Replaced wiring harness in '86 E150. Ran great and now new issues turning off...

[Smgbad]

I just replaced my wiring harness on my '86 E150 due to the original being too corroded and not sending power to the remote throttle and key. So after installing the new harness, everything started and ran great 4 or 5 times, and it shut off just fine each time. I went to work on other parts of the boat and came back to bask in my handy work one last time before coming inside for the night and to my surprise turning the key off only seemed to cut the engine down to about half power, but not all the way off. Turning the key back to the ON position (not start) made the missing "power" immediately kick back in. And it does that every time now. Tried pulling the red plug apart to stop it and that just sped the engine up. Finally got it to cut off by switching the key to OFF one last time and it seemed to choke out.

Before I do any more damage than I may have already done, what should check I here? It was working fine when I got it all back together... Thought I finally got it to where I was gonna be able to put it on the water.

A couple things worth noting that may or may not matter. This harness had the same part number as my original, but came off an E150X model wheras mine isnt an X. It had 1 extra 4 wire plug on it that apparently goes nowhere as it wasnt on my original. Other than that though, I believe everything was the same. I just left the non needed plug in there hanging in the open.

Any advice would be greatly appreciated..

 

[racerone]

The X model is for 25" transom.------Yours is for a 20" transom.------Picture / wiring colours on this 4 wire plug ?

 

[Smgbad]

The X model is for 25" transom.------Yours is for a 20" transom.------Picture / wiring colours on this 4 wire plug ?

Here you go. I'll take vid of it running tomorrow morning if needed.

 

[Smgbad]

Also... looking at the wiring diagram for my motor, that 4 wire plug doesnt seem to be present... I did notice in the diagram that the black and yellow wires (that go to a connector before entering the power pack on each side of the engine) are active when the switch is in the off position. If one of those connectors isnt making good connection, wouldnt that keep that half of the engine firing while the other shuts down? Assuming that wire tells the powers packs to shut the engine off (as it also goes to the emergency shutoff in the remote assy).

I put some electic cleaner spray and dielectric paste into the connectors when I put the new (to me) harness on. Could that be causing an intermittant connection causing one half to stay running?

 

[Smgbad]

[No message]

 

[Smgbad]

Solved... The starboard side kill wire (black/yellow) female terminal had slipped down in the connector butt to where it wasnt making contact with that needle pin. Pushed it back up in there and it turns off both sides of the engine now... lol