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Mystery Plug found under hood

Posted:
Wed Oct 29, 2014 9:30 pm
by KidKRYLON
Theres a random unplugged plug under my intake that I have no idea where it goes. It has a green wire, Yellow wire, black wire, and a white wire going to it but the only thing that doesn't work on my car is the horn... Any ideas if this is the horn wires or something else?

Posted:
Wed Oct 29, 2014 11:05 pm
by egsedanguy
do you have a swap or anything? what year car?

Posted:
Thu Oct 30, 2014 12:33 pm
by KidKRYLON
93 cx with a 97 y8

Posted:
Thu Oct 30, 2014 1:49 pm
by HeikDiesel
My guess is IAT but I'd have to look at the schematic

Posted:
Thu Oct 30, 2014 3:36 pm
by teal_dx
What engine harness are you using? If it's the OBD2 harness it may be for the secondary o2 sensor. IAT is 2 or 3 wires. o2 sensor is the only thing I can think of with 4 wires that might be that color.
A pic would be a big help


Posted:
Thu Oct 30, 2014 6:41 pm
by HeikDiesel
It's usually not G,Y,Bk,W is it?

Posted:
Wed Nov 05, 2014 7:52 am
by KidKRYLON
It's a secondary o2 sensor. Looked at a buddies EL. Is there any use to it tuning wise or should I just tape it off? I'm OBD1 not OBD2.

Posted:
Wed Nov 05, 2014 4:01 pm
by teal_dx
You can just tape it off
