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HerraFrush
02-21-2014, 03:06 PM
I have an 89 s13. Bought a redtop s13 SR20DET swap. Came with both engine and lower s13 harnesses already modified for swap into s13.
I got to my lower harness and ran into a snag.
The connectors right at the relay box are different than my KA-E lower harness.

KA-E lower harness connectors at relay box:
http://i4.photobucket.com/albums/y121/nakednoah/Forum%20stuff/kaelowerharness.jpg

Lower SR20DET harness connectors at relay box that came prewired with the swap.
http://i4.photobucket.com/albums/y121/nakednoah/Forum%20stuff/sr20detlowerharness.jpg

Why are there two of the same connectors on the relay box end of my pre-fabbed lower harness for the SR20DET?

Wiring gurus please help, I'm almost clueless when it comes to identifying nearly 20 percent of these connectors.

Needless to say now there is a 4 pin connector sitting under my relay box that nothing fits into, and two identical connectors on my SR20DET lower harness! They both fit into the same socket. How am i supposed to know which one belongs in the socket they both fit into LOL.

wiring specialties
02-25-2014, 08:31 AM
Looks like the second 8-pin grey plug is for an automatic interface.
Take a picture from the other end of the plug and we can have a look.

Yury

HerraFrush
02-26-2014, 05:22 PM
Here is the exposed wire side of each plug
1st 8 pin plug
http://i4.photobucket.com/albums/y121/nakednoah/Forum%20stuff/2F9B2C47-1764-45B3-AEDB-D9840AAD9EDF.jpg
2nd 8 pin plug
http://i4.photobucket.com/albums/y121/nakednoah/Forum%20stuff/E18C250D-CA95-43F4-8CFB-42863352DAB6.jpg