Ok, so I took out my ECU for an Rtek 2.1. I unplugged a few too many plugs but I got everything back in except this black one. I have laid under the dash and looked all over but can't find where it may go. I am still looking though the FSM but not having much luck. Its an 88 TII. Its on the harness that goes under the dash towards the driver's side. I attached a picture. I have a factory security system that someone seems to have replaced with an aftermarket one. I am wondering if it went to that? Any help is appreciated.

 

What are the wire colors? Just a general pic of the plug w/o the wire colors offers little if any help.

 

it almost looks like the wiper motor plug, but that shouldnt get unplugged for an ecu swap...

 

The wiper motor plug on the outside of the firewall does look similar. Oh, I said I was just doing an ECU upgrade but I misspoke. I also pulled the wiring harness on the passenger side when i pulled the engine so this probably has nothing to do with the ECU. Infact it is not on the same run of harness, it appears to run all the way to the driver's side. Here is a better pic of the wires:

Looks like black with yellow stripe, black with white stripe, black with orange/red stripe, green with orange stripe, black with blue stripe.

Thanks again for looking!

 

It's connector F-07 and it's the Cooling Control Fan Unit plug.

https://docs.google.com/file/d/0Bzy-...hl=en_US&pli=1

 

I just found it too! When you said that you needed colors I got to looking at the FSM details and duh... that whats the letters mean . That teaches me a lot more then just what this plug is.

Thanks again!