LS1 Wire question??
LS1 Wire question?? Im running my wire now and i came to a bump on the road. I have a 2000 LS1 with auto tranny in a 89 camaro. Now, on the C105 LS1 plug, C100 plug there are two wires for the PNK HOT IGN wire. Do i just use my one PNK IGN wire from the camaro and split it and use a bigger fuse? Im trying to get the car started this weekend. thanks
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
There should be 3 ign hot pink wires, C100 A and G both of which require an individual 15A fuse. And C105B which requires a 20A fuse. I would not recomment using your previous pink ign wire to power this unless it is set up to handle a 50A load, I would hook that wire up to terminal 85 of two automotive style relays, hook terminals 86 to ground, and hook both terminal 30`s to a constant battery source capable of supporting 50A (the easiest solution would be the stud on the back of the alt) Take your two ignition hot wires from C100 and wire each one to a 15A fuse, then wire the other side of the fuses to teminal 87 of one of the relays. Now wire C105 B to a 20A fuse and then to terminal 87 of the other relay.
There is actually 4 IGN wire 
LOL I already have C100 A figured out,C101 B figured out, Its just C100 G, C105 B and also i just noticed on the little White 220 plug C needs an IGN source or does it feed off the C105 Plug?? Thanks
LOL I already have C100 A figured out,C101 B figured out, Its just C100 G, C105 B and also i just noticed on the little White 220 plug C needs an IGN source or does it feed off the C105 Plug?? Thanks Ok, so i dont need to run anything to C220 B right? But what about the C100G and C105 B?? Just do what you said and use the factory IGN and get relays?? This is all stressing me out bro... 
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
Originally Posted by ramair21
Ok, so i dont need to run anything to C220 B right?
Originally Posted by ramair21
But what about the C100G and C105 B?? Just do what you said and use the factory IGN and get relays?? This is all stressing me out bro...
did you read my info in the stickey? That may help relieve some of the stress. Heres the linkhttps://ls1tech.com/forums/conversions-swaps/312119-ls1-swap-faqs.html Go to my post and click on the 99-02 attachment
Last edited by G-Body; Jun 15, 2006 at 12:12 AM. Reason: fixed link
That helped alot bro!! I feel better thanks!!! So i could go get a bosh relay from the parts store along with inline fuses?? I just need one relay. For the C100 G, C105 B. Someone said that i could use the factory 89 camaro ECM power wire to the C101 E
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Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
Yeah, you should be able to use the factory computer power wires to power C101 E and G. You could go to the parts store and get standard bosch style 30A automotive relays and inline fuse holders. You could also hit a junkyard and buy an underhood fuse box from a midsize GM FWD mid 80`s to late 90`s car, that`s what I did, it had relays for my power sources, electric fans, fuel pump etc. It also had spots for probably a dozen fuses so I still have space in reserve. It is only probably 3in x 9in so it tucks in nicely.
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Verdad Gallardo I might just have to go do that then. Go to the junk yard and get that. im still confused on how other 3rd gen members did it?? There should be a hotline for the LS1 swaps. LOL. Thanks for the great help.
There are an amazing number of great fuse and breaker panels at the wrecking yards. You can also grab relays with connectors and wires from factory harnesses. It is so much cheaper than going to the stealer or parts store.
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
Originally Posted by acdcgcsc
G-body you know a lot about wiring cars and trucks do you build harnesses
. I just know about the wiring because I can easily read wiring diagrams and GM is pretty good about standardizing their wiring colors and placement. G-body!! Im still not sure about connector 220 Pin C???? So i DO NOT TOUCH!!! If not then why is it there?? Someone told me to connect pin C,D to my purple brake switch on my 89 camaro? I know i need to connect Pin D, but i didnt know Pin C as well.. Could you clear this up for me? Also too, how do you hook up the OBDII ALDL connector? There seems to be only one wire that goes to it which is Connector 230 Pin K?? What else is missing? Thanks again
Originally Posted by ramair21
G-body!! Im still not sure about connector 220 Pin C???? So i DO NOT TOUCH!!! If not then why is it there?? Someone told me to connect pin C,D to my purple brake switch on my 89 camaro? I know i need to connect Pin D, but i didnt know Pin C as well.. Could you clear this up for me? Also too, how do you hook up the OBDII ALDL connector? There seems to be only one wire that goes to it which is Connector 230 Pin K?? What else is missing? Thanks again
220 K is the serial data feed to the OBDII connector. To communicate with the PCM, you need 220K,+12V and 2 grounds.
Here is a good thread to use for the OBDII connector. https://ls1tech.com/forums/conversions-swaps/239582-problem-obd-port-not-communicating-after-engine-swap.html
Last edited by StngKlr; Jun 17, 2006 at 01:15 PM.
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
Heres another thread to use for the OBD II connector, theres a diagram in the first post.
https://ls1tech.com/forums/showthread.php?t=312119
https://ls1tech.com/forums/showthread.php?t=312119