HAILERS

I have and idea about the alternators BW wire and how to deal with it.

See the attached jpgs of the LOCKUP RELAY for the automatic transmission cars. Now yours is not an auto. But, the PLUG for the LOCKUP RELAY should be up front where it's shown in the picture.

So. You find the plug. It'll have the wire colors shown in the attached plug jpg. You just put a permanent jumper b/t the BW and RL wires in that plugs socket.

That means power from the ENGINE FUSE will now flow thru that jumper and back to the X-08 plug. Soooooooo, you jumper from the BW wire in the X-05 Turbo engine plug, to that RL in X-08. Done. Now you have switched power to the alternators small plug.

JWteknix

iTrader: (2)

ok hailers lets see if i understand correctly how do these all look besides the first one?
http://www.nopistons.com/forums/inde...6&#entry891846

when this thread is done i think it should be archived thanx to Hailers

HAILERS

Yes. That seems right. There's no easy way to do the WHITE/BLACK to the CPU.

Yes. Do the jumper at the relay plug up front. That will put switched 12v at the X-08 plug where you can then attach the alternators BLACK/WHITE wire. Should be a somewhat simple jumper job. At least the jumper wire won't be long if needed.

The really important wires are in the other plugs. Like the CAS wires are in the other plugs that don't have to be messed with.

I ASSUMED that you will find that relay plug up front tied back to the harness. I was too lazy to go out and look at the car. It SHOULD be there even if the car was not a automatic.

Frankly I'd have a hard time following this thread if I didn't have the schematics in front of me. It helps a lot that several yrs ago I bought a full size FSM for a 87 that has colored wiring diagrams. They show all ENGINE plugs/wires in Blue to distinguish them from the other harnesses.

I might re-read what I've written so far. I do make MISTAKES, especially when it's something I'm not doing nor have ever done. But what I wrote made sense to me.

I might download some jpgs of the actual colored wiring later if you have the ability to print them out. Just the wiring that is involved with these Engine harness plugs, not everything.

By the way, in any socket where I wrote something like 4AT....those wires do and go to nothing since you have no automatic. Clarification...they go somewhere, but not to a source of power nor a source of gnd if memory serves.

That's not counting the relay plug that your about to jumper. That will be active once you do that since it'll put switched 12v on the X-08.

JWteknix

iTrader: (2)

You sir are a very smart man

JWteknix

iTrader: (2)

hailers can u think of anything else or is this it?
thanks
james

HAILERS

Yeah. I've altered my mind about X-08 in one respect. Remember how I suggested you go to the Turbo X-08 on the engine harness? How it's a one wire plug? And how I said connect that wire to the BW wire on the bottom row of the non turbo X-08 and also jumper it to the BR wire just above the BW???? Well there's no need to jumper to the BR wire above it. Just connect to the BW wire on the bottom row.

If I see something else, I'll mention it. Even if you already did the jumper b/t the BW and BR, it matters not. Won't effect anything.

JWteknix

iTrader: (2)

ok hailers i when to wire it all up today and ran in to some problems. x-04 and x-06had no problems at all went togrthe perfect. but i did have a problem w/ x-08 and x-05 on the na front harness the connectors i have are differnt then the illistations u have posted. these are the only connectors left on the the n/a harness. then i have the two connectors on the turbo harness that u posted for x-08 and 05
http://www.nopistons.com/forums/inde...5&#entry892765
the two wire connector is located right next too the brake fluid level sensor connector. the white and black wire on the circular connector looks to be the same gauge as the x-08 connector on the turbo harness should i splice these wires together?
also the harness is missing the A-14 lock up relay connector is there another way to hook up the alternator?
i will post actual pix of the connectors when i figure out how to get them off my phone
thanx james

JWteknix

iTrader: (2)

pictures added to that thread

HAILERS

Eh. Something is screwy here.

Well I fudged up. I've been using my 87 FSM wiring and ***-U-MED the 88 wouldn't be much if any different.

So, scratch any jpgs I posted. Tell you what, I'll take a little time later tonight and try to use the online 88 FSM to straighten things out.

HAILERS

Well, there's still something screwy. The 88 fsm does not show a round four pin connector on the FE harness.

On the round connector, tell me what the wire colors are. Same with what looks like a two socket connector. Wire colors please.

Did this na car have ABS and or was it an automatic? Matters.

HAILERS

Yes, the black/white in the Turbo round, one wire connector should go to the B/W in that other connector. That's the wire to the starter in the single round connector.

Still need the number of wires in the na round connector (four?) and the colors please. It does not seem to be that much more difficult to figure out. They also use different reference designators. They don't use the X-05 etc designators but use FE (Front to Engine), like FE-05 or FE-02 etc.

And I think I'm going to have some difficulty posting jpgs of the 88 FSM. BUT, we really only have to deal with the four (three now if the BW is right) wires in the round plug. The other two socket plug has me scratching my head. If I have the colors I'm sure it's something to do with brakes maybe.

JWteknix

iTrader: (2)

no abs and stick shift wire colors of the two connectors are in the paint document i made above the pictures the round plug with four wire has a large B/W wire the same gauge as turbo x-08

JWteknix

iTrader: (2)

the other three colored wires are B/R, R/W, and what looks to be a solid black wire

JWteknix

iTrader: (2)

the other two prong connector look to be L/O and black

HAILERS

I guess it really does not matter, but the online 88FSM shows no round plug with those wire colors BUT it does show a square one with the same colors and I'll assume that is the same plug. You can see that plug on page 50-19 of the wiring diagrams of the series four online.

So the B/W on the four wire plug will connect by hook or crook to the B/W wire in the round plug on the E harness. You can see that B/W wire on page 50-18 and 50-19 of the same 88FSM wiring diagram. Plug in that FSM is called FE-05.

The R/W in that same FE-05 plug on the non turbo is for Low Oil warning and can be seen on page 50-70 of the same FSM. This wire gets tricky. If this FSM is right, then the mate for that R/W wire is in another plug. The other plug has six wires and the R/W wire in it should be on the bottom row on the far left. So pull one of those six wire plugs apart and look at the Engine side of that plug and you'll find a R/W wire. You have to mate those two together by hook or crook. This other plug is called FE-03 and can be seen on page 50-70 and page 50-71.

By the way, on page 50-71 they do show the FE-05 as a round plug. So we're doing right.

Next wire is Black and can be seen on page 50-28 and is the ground for the fifth gear switch. It needs by hook or crook to connect to the Black wire in the six wire plug called FE-03. Same plug on the E harness we talked about in the paragraphs above.

The last of the four wires in FE-05 is BR and is sub-zero signal. It can be seen on page 50-36. It also needs by hook or crook to go to FE-03 (six wire plug) just like the others.

If you have the series four wiring diagrams downloaded you can follow the above. If not, then download them. I'm not going to be able to post jpgs for a while.

The two socket plug? I'm still looking for that.

HAILERS

Oh. The two wires for the alternator. They are found in the plug called FE-03, that six wire plug again. Your just going to have to run two new wires for the alternator from there to to the CPU with one and the other to ??? Engine fuse in the interior. No way around that. See page 50-16 for that.

HAILERS

L/O and B is Brake Pressure switch. Page 50-114. It's also seen on 50-80 and 50-81. It's only for cars with AAS, Auto Adjust Suspension.


Sorry 'bout having to change from using ref like X-04 and change to terms like FE-03, but that's what the 88FSM uses and what you will see on the pages I referenced above. No way around that. Can't be helped.

Just in case: http://www.cochran-racing.com/FSM/s4/index.html the Wiring at the very bottom of the page.

HAILERS

I'm tired and maybe didn't make things clear. You have a white, round, four wire plug on the Non turbo harness. Those wires need to mate with wires on the Engine harness (turbo). So when I say those wires need to mate to FE-03, I mean the ENGINE harness side of that plug FE-03. But you knew that. But just in case......

I wish you had a spare six socket plug. Then you could remove all the wires from the white, round, four wire plug, install all the removed wires in that spare plug , and just plug the spare plug into the turbo engine harness. Life would be easier.

JWteknix

iTrader: (2)

I do have the other side of the six pin connector I now that I looked further into the the connectors I realized how easy this really is. I cut the male six pin connector off the turbo front harness I have leaving enough wire to solder connections. Then i cut the four pin connector off and splice the B/W to the turbo single plug B/W X-08. Then splice the other three wires to their coresponding colors on the new connector leaving me just with just the two Alt.wires right? I'll post a pic of what I'm talking about in a little. Thanx
james

JWteknix

iTrader: (2)

ok hailers i have the diagram up for what im talking about the only guestions i have left are about the alternator wires W/B goes to cpu correct? but where is the pin and connector locations it supposed to be routed too. also, the other alt. wire has to go to the engine fuse but how do i hook it up correctly? thanx
James
http://www.nopistons.com/forums/inde...7&#entry893067

JWteknix

iTrader: (2)

hailers in another thread where u talk about wiring for FEM-01 and FEM-02. you mention that u need to cut a Br/B wire on turbo hanesses fem-01 connector b/c it mate w/ a W/B on the n/a side which runs to the interior engine fuse now can i run the B/W alt wire to that one and then just hook the W/B wire to the CPU or is that a stupid idea?
thanks
james

HAILERS

Yes. You really need to fix that plug called FEM-01. It's the fifteen pin plug that is orange in color , and IF you look at the Front side of that plug you find a B/W wire just above a W/B wire. BUT on the Turbo EM side of that plug , you'll find a BrR and a BrB (or possibly just pure black instead of brown/black) that would mate with the BW and WB if you mated the plugs.

Those two wires (BrR and B) Need to be cut about 2-3 inches back from the plug. And you splice your two new wires from the alternator to them.

The reason you really need to cut those two wires, the BrR and B, is that the BrR is tied into the boost sensor output wire and if you leave them in place you'll backfeed 12v to the boost sensor output and the ECU input from the boost sensor. That wire usually only sees not more than 5vdc and if it sees over 3.65vdc it'll send the ECU into fuel cut to the rear rotor.

Attached a jpg of FEM-01. It's labled X-15 in the jpg but it's really FEM-01

Attached is a jpg of some elses EM harness. I pointed to the two orange plugs of which is FEM-01 (has fifteen pins/sockets).

JWteknix

iTrader: (2)

ok is this right?
http://www.nopistons.com/forums/inde...howtopic=71746
if so what do i do w/ the black wire i cut off the connector fem-01 wrap it up like the Br/B one? or will i have to route it to another pin location?

HAILERS

No. I didn't explain it very well.

See the BrR wire just above the BrB wire? You should just be looking at the plug called X-15. The plug on the left of your picture. See the ( ) around the BrR and the BrB???? Those are the wires on your turbo EM harness.

You have WB circled in black. See the (BrB) just below those colors???? Those are the wires that are in your Turbo EM harness. You won't have the WB and the BW wires. Those BW and WB are peculiar to non turbo cars.

So find the BrR that is just above the BrB on your fifteen socket plug. Cut those wires about three or four inches from the plug. Attach two new wires to the remains in that plug and run those two wires to the ALT.

I was earlier trying to explain how on early 86-87 cars they used a brown/black wire in that bottom socket, but on the 88 and on cars they use a pure black wire instead of the brown/black.

You do nothing with the plug on the right. At least not right now. It has no alternator wires.


Go out and look at that fifteen pin plug. The half of the plug that is on the EM harness half of th e plug. I think it'll make sense to you then. THEN look at the half of the plug that is on the half of the plug on the Front harness. You''ll see a BW just above a WB wire. Leave those alone. Your new wires will be mating with those two thru the EM half of the plug when your through.

HAILERS

About the BrR and BrB wires you cut in the EM half of the plug. You cut those wires about three/four inches back. You will be using the short pieces left in the plug. But the other half of those cut wires needs to have some electrical tape put on their ends or shrink tubing one to prevent possible shorting to gnd.