Printable View
I need help with some wires. I found two connectors that had no home hanging on the back of my harness near the passenger O2 sensor. I started pulling wires out of the harness and traced them to the C100 connector.
http://i1049.photobucket.com/albums/...ps996cf4ef.jpg
What are these and do I need them? Do I need anything for that matter that is on the C100. Here is the wires on the C100
http://i1049.photobucket.com/albums/...ps159d036e.jpg
Thanks for your help
not sure what wires are what on the 94, i have a 96 & they're different, but your speedo, tach, oil pressure, temp, check engine & a few others are in that plug & you will need to tie into them.
Thanks for the reply. Ok I figured it out after some reading and got the wires pulled and labeled. I still have a few questions now about left over wires. First 3 wires that go the connector that plugs into my tac module for drive by wire. What are these, and do I need these 3 wires?
http://i1049.photobucket.com/albums/...ps217da175.jpg
Second, I have 2 wires that go some weird connector on my negative battery cable. What's the fix for this one?
http://i1049.photobucket.com/albums/...ps45f7c8c2.jpg
Thanks for your help.
Ok that link really helped out, thanks kewljay. I discovered that those wires go to my cruise control switch.
http://i1049.photobucket.com/albums/...ps8a7997e4.jpg
Now, if anyone has information on the other 2 wires on that battery generator thingy, I would greatly appreciate it.
I can look up some info on alldata for you.
What model did this motor come from? What is the 8th vin number from donor vehicle?
Generator battery control module. That is what is around the negative battery cable.
Thanks brother, I appreciate your help. Here is the printout from the donor.
http://i1049.photobucket.com/albums/...psb7b4fa68.jpg
It's a module of some sort with a 10 pin connector
http://i1049.photobucket.com/albums/...psbc59da3b.jpg
The numbers on the top of the module read 15137027
The bottom reads RVGB 621375
http://www.lt1swap.com/2004vortec_pcm.htm
Scroll all the way to the bottom and look at pin 74 and the green box. Need to do more digging on deleting it and possibly tuning out the DTC code for it if you get rid of the module.
I dont think those 2 wires are for that module. They are not even in the diagram.
http://i88.photobucket.com/albums/k1...ps7fc0f9c9.png
I dont know why it is so small and wont let you enlarge it when clicked on. I hate the new photobucket.
My pin 74 is there along with 75. It's hard to read that block. Not sure what to do with it, the guide says rewire alternator gray here which is already there on my C2. I think that the diagram on lt1swap is talking about pin 75 on that. It's in a weird excel format. When I copy and pasted it to excel, it reads like this
http://i1049.photobucket.com/albums/...ps89c56c19.jpg
Im just surprised that there isnt a whole lot of info on this as there are plenty of people using these later year motors.
To me it just seems you would take the gray wire coming from the alt and wire it directly to the ECU and the brown wire on alt to your charge indicator in the cluster.
Im just glad mine didnt have all that.
I am going to email Brendan on lt1 and ask. I will repost the answer I get from him on this matter. I also agree with the photobucket comment. I am using the iPad app because the website site is way different from when I first started using it. The app is actually pretty convenient. If anyone knows something about this battery generator, please chime in.
Ok, if you have this newer model engine/wiring harness, you can remove the entire module off the negative battery terminal and remove the wires completely from the harness. Take the brown wire from this module and pin it to the C2 Green #15 pin. The alternator gray should already be in #75 pin, I just have to follow the connector alittle ways back and clip it off at the splice.
Aright, got the newer harness graphed with the old truck wiring. I have a couple of wires left that I need help with. First are the wires from the C2 underhood fuse connector, D3 L-GN 275 Park Neutral Position Switch Park Signal, and F11 D-GN 1433 Park/Neutral Start Switch Signal. Do I need these wires, if so, where do I graph them too? Second is also from the C2 underhood fuse connector, A11 GY 1524 Trailer Backup Lamp Supply Voltage. Does this need to be graphed into my harnes for reverse lights?
Ok got my answer from Brendon over at LT1swap. All 3 of these wires are not needed. The 94 already has a park neutral safety built on the column. The trailer backup is also on the column and can be removed from the harness. Also, I have aquired a pinout for the instrument cluster, this really helped in tracing out wires to make my guages work that I will post on my build thread.