I posted this in my build thread, but nobody reads that, so I'm hoping to get some attention here. I screwed up a wire tuck and am replacing my entire harness. The STD harness had been hacked up by a couple of the previous owners that added mpfi, aircon, some other wires that I don't know where they went, and I did an obd conversion. I figured trying to repair that harness was out of the question, and picked up a full EX harness so the mpfi was already in place and I wouldn't have to cut anything up.

But, it's not quite a straight swap. I've got a few issues. Of course the EX has extra wires and plugs for all the power accessories and air conditioning and the like, but it's lacking some of the plugs that were on the STD harness.


These are the two parts I'm having trouble with so far:



That grey box was in my STD, and the blue plug on the STD harness

Here's the std harness with the blue plug, and same section on EX harness without plug.



And this is the plug that goes up the A pillar that I can not identify. I'm guessing it's seatbelt warning lights, but I don't want to be wrong and have it be dome light or third brake light... anyone know?

 

Are you doing this with out a wiring diagram?

 

Yup. Going mostly off memory. For the hard sections I'll sit down with wiring diagrams, but as far as plugging in plugs and strapping down the harness I can handle that from memory.

 

Well, word to the wise an EX harness will not work in a hatch without changing all of the chassis plugs.

I'm taking off to the junkyard to pull a complete STD harness.