1990 - 1991 harness swap HELP

[1gdsmftw]

i attempted to try and find this but....i found nothing

I have already gotten the harness swap 90% done...The only thing that has me stumped is the big white pigtail on the passenger side of the car....The ecu side of the harness that feeds through the wall is split into 2 pieces....First piece goes over to the ecu...and the other goes down the side and plugs into about 3 pigtails...well 2 out of the 3 hooked up just fine..the 3rd one the biggest did not match up to the 90 harness...what is this pigtail for????

i will have a pic taken soon...just trying to recoop from the work

 

[92AWDHX40]

Get pics.

 

[1gdsmftw]

will do in the am....its already gotten dark...

 

[94_TSi]

Abs wiring popped in my head

 

[1gdsmftw]

Abs wiring popped in my head

that would make sense if it was an auto...

but i am a 5 speed with lsd

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so these are the 3 plugs that come down the passenger side of the car...next to the blower motor box inside the cabin

the bigger one on the right is the one i am having an issue with...

 

[Momar]

Did you ever figure out what to do with this? I am having the same issue right now. I installed a 92 harness in a 90.

 

[1gdsmftw]

yea to an extent....the pigtail in the middle of the dash is going to have 2 extra wires.....those 2 wires just need to find a circuit to be wired into use a circuit test light and see if they light up vs your harness and if they light up....they have to be matched to a similar circuit whether they are switchable positive constant positive or ground....

thats as far as i got before selling the car due to issues beyond my control