Ok, first off I have searched and read the articles relating to wiring in the archives. While very helpful, alot don't fully apply and I've discovered that many of the archive posts in general, are now missing most of the pics. Also, I do have the FSM, the workshop manual, Haynes manual and wiring manual for the 84'. So, first to the situation. I have an 84' GS w/12a. No power steering, w/ 5speed manual tranny. I am putting in a 12a from an 83'. Right now I have the basically bare motor bolted up. I'm installing a weber 45 DCOE 9 w/one piece intake, new fuel pump and regulator, e-fan from taurus, Gilmer drive pulleys and belt, upgrading to Optima red top which I'm relocating to the storage bin, a gen.2 fuse block, and I'm going DLIDFIS w/ GM igniters and new coils. I want to keep the stock oil pressure, water temp and oil level sensors, so that my "dummy lights are still functional for now. The deloom write ups mostly cover the wiring on the passengers side, but not the even larger looming on the drivers side. So question #1 ......... I know I need wires for the above mentioned sensors as well as the headlights and thier motorsaside from that is thier ANY other wiring I need to keep here? Can I just gut the whole harness? I'm going to be running new wiring for the ignition/starter/battery/gen.2 fuse block/fuel pump and e-fan already. I'd like to be able to simply run new wires for I need to keep, so that all engine bay wiring will be clean and new. Question #2 ......... On the drivers side, part of the harness runs down to the tranny area. It appears to be for kick down and overdrive solenoids if I'm reading right. Do I even need this section of harness at all? Those solenoids are for A/T correct? What is on the drivers side loom that I'd need to leave given the setup I'm going to use? Thanks to all for any and all help. Just getting frustrated and irritated trying to connect the dots on all these wiring diagrams and looming. Wiring diagrams are my downfall, always have been.

Now once I get this all accomplished......... I go to the inside and add power windows,keyless entry, a pro audio setup w/hard drive, dual amps, subs and speakers, and a gearshift mounted start button. (Cobra style) Not to mention thefiberglass fabrication inside. Then we're off to suspension/brake/body. OMG! I must be in love with pain and frustration.

 

Have you tried the manuals in the rx7 doctors sig? I couldnt find the answer to a question until I checked these out. Not sure if they have any for the 84 but I found that the wiring looked to be the same for the 83, 82, and 81. I found a 83 at a local pick and pull and found that most of the parts interchanged and the only real differences that I could find were all cosmetic or little extra features like power this or power that. For instance the starter from a 83 will fit on a 81. I think the big differences are the generations because I have yet to find a part on a 12a no matter the year that wont work on my engine.

Here are the manuals link http://foxed.ca/foxed/index.php?page=rx7manual#firstgen

 

Hope this helps some. I am stripping my engine wiring down to bare minimal. I have the same set up as you.

Wiring removed from main harness on drivers side:


X-01 Harness depinned:


Here is the harness held up, you can see the plugs left.

 

Put a thermal reactor on an FB

 

You talkin about that little metal box on the exaust header? I have a FB and it has one unless that is something else. Then agian im still not sure what year the engine actually came out of all I know is that its a 12a.

 

Jeezus,
Did you remove the part of the harness that ran down to the tranny? What is there on the drivers side that needs to be kept? Pics did help BTW. Thanks for those. Did you remove the relays mounted on the body near the brake booster? I think they are choke related? Yuor bay is nice and minimal. That's what I'm goin for too. I've got new loom and tape to tidy up, and all new braided hoses and fittings on the way.

 

I can't see right now what exactly is connected. My car is in an open carport but no concrete, been kneelin in mud, now frozen. LOL The manual seems to indicate this harnewss is for a couple solenoids, overdrive and kick down. also looks like some of the starter wiring. I'm redoing the starter wiring anyway, so that is a non issue. Just hoping someone knew if there was any "necessay" wiring in this part.

 

X-01? if I'm reading the schematic right, that should be the fusible link. I hate wiring.

 

Yes I did. Figured since every automatic I ever owned I have either blown up or intentionally totalled, it would be good to clip those wires

I did also remove the relays, if these are the ones you are talking about:



I can't remember EXACTLY off the top of my head, but they can all go (I took out my AC). The Choke and check relay is for the choke (obviously) and the check is for the alternator. That is what lights up your dash lights if something happens. Figure if I have a volt meter and it starts draining, that would be enough of a signal that something is wrong.

I removed EVERYTHING I didn't need. AC, Cruise, Hot start, Rats nest, windshield washer stuff, everything. There is literally nothing on the passenger side but the brake line.

 

Negative captain. X-01 is the big mama that heads towards the Rat's nest. Grab your alternator wiring and follow that down to the big bulky connector. That is the X-01.

EDIT: Here is a picture of where it is located:

 

It is the manifold from a 78-80.

 

what year is your seven? maybe different plug designations on different years? The book for myy 84' shows that exact picture and it is x-10 in the book. x-01 is the fuseable link, even on 13bs according to manual. Wierd!

 

Mine is an 82. Let me check with the 84 FSM.

 

I think I'll try to leave the "check" relay if that is what operates the battery light in the cluster. I'll just have to track the wires so I can figure where it'll hook up with my second gen alt. I'd have been less lost if it hadn't taken me so long to get a motor and get it in! Pulled all the wiring off the first motor-discovered the motor was trash, pulled second one from my 83 parts car, it needs rebuilding, then got an 83 from a club member. Started in mid Feb. Just now getting to put in and rewire.

 

S4 alternators bolt right in That is what I am running.

Just finished downloading the 84 diagram and you are correct, it is labeled differently for S3 cars. The X-10 harness picture seems to be 2 plugged. I cannot remember if on my car it is dual plugged or single. I remember there being a smaller plug that went to the transmission but for the life of me I cannot remember if it was in the same bundle!

 

Ok, if I'm reading this correctly "big if", the connectors going toward the tranny are X-09 and X-10. It looks like X-10 is for automatic engines....... so "I Think" I can get rid of those, but X-09 seems to hook to stop lights and maybe rear tail lights. Right?

 

If x-10 is for auto's then I would think it would be ok to remove it. Let me check the diagram again. One thing I noticed is if your X10 has anything concerning back up lights or tail lights then I would keep it.

EDIT: Look at the last page of the 84 wiring diagram, that has the connectors. Give me a minute so I can draw up a diagram

 

I know I'm just a noob, but if the 84/85 wiring is different, should I take pics of everything now and as I go? Would that help others doing this? Just wondering since I usually think about that kinda thing after the fact, also I don't intend to do this again! What a pain in the ***! I thought going with this setup would simplify things alot. LMAO! Didn't realise just how complicated it is to make things simple. Thanks for all your Help Jeezus!

 

No prob man

Take some pictures! While I was de-wiring the car I just took tons of pictures of the connector and the color of wires. Easy to identify everything with all the pictures and the FSM/club. Find what you don't need and snip!

This makes me want to tally up what wires I have left so I can post them. Something to do tomorrow

 

Ok, I'll take pics in the am before I start tearing things up, than more as I go. I have a couple unrelated ?s for ya. With your sidedraft, did it have the choke on the back? Do you use it or have it hooked up? Also, with the weber/ no vacuum source, what are you doing with your vac advance? just leave it? remove it? plug it? Also on my carb, the fuel union has no nipple or threads, is there a certain type slip union I have to put on it or in it to connect my fuel line?

 

Yes but the carb is boost prepped so technically no. If that makes sense. I have 1 vac line and that goes to the brake booster. I will have a tie in somewhere between for my PVC.

My dizzy is not vac operated any more, I advanced it:

http://www.yawpower.com/pultime.html

I leave the nipples open.

There are no threadings?


That is the best pic I have of it right now. Do you have anything where mine is? It is a Weber 45.

 

I have no vac lines on my 45. there are 2 threaded holes in my intake, I'm going to plumb the brake booster to one, and my crankcase to the other. As the pics show, no threads on the fuel union. Also, my throttle linkage is on the opposite side. I'm assuming I can swap that over.[IMG][IMG][IMG][/URL][/IMG][/IMG][/IMG][/IMG]

 

oops screwed up the pics, try these.
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I would leave the choke and check relay. I've managed to have the choke work correctly and automatically, like stock, with both a Mikuni and the RE dual DCD carbs. Beats sitting there holding the choke out by hand on cold mornings. Not sure what the check part of that relay does. Be sure to keep the oscillator. It powers the warning buzzer for low water and oil.

 

Trochoid, what does the oscillator look like?I see a reference to it, but not a pic.