alternator L an R plug gone
07-28-08, 07:06 PM
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alternator L an R plug gone
So i was having troble with me cars charging system an i looked an looked an nothin. today i was looking really hard an a seen a white wire sticking out of the harness. So i checked to see if that was one of the wires from the l an r plug ,an sure shizzz it was the white an black or blue mines faded a little... but the one from the alternator. To make sure i put power to the wire an check an it read 12v with the car off...
But anway checked an looked harder an there was the black an white wire too but it was spliced into the ing wire. so i spliced the ing wire back to the right wire. an now the two alt wires are just hanging out. I cant find the plug that they would go into. But i did a Turbo II swap in my gxl an had to change the battery harness an now them two wires are just hanging with no plug from my na harness...
But anway checked an looked harder an there was the black an white wire too but it was spliced into the ing wire. so i spliced the ing wire back to the right wire. an now the two alt wires are just hanging out. I cant find the plug that they would go into. But i did a Turbo II swap in my gxl an had to change the battery harness an now them two wires are just hanging with no plug from my na harness...
07-28-08, 08:38 PM
#2
Rotary Freak
What is a *ing* wire?
What harness did you use on the engine? A turboII harness or a non turbo harness? I assume this is a NON TURBO car with a turbo engine.
Just for the record and the ability for you to read the wiring diagrams in the free online wiring manual:
The harness on the engine is the EM harness. That stands for Emissions Harness. In the wiring diagrams you'll see (EM) written next to the color of a given wire that is in the EM harness.
Say you actually look at the free online wiring for a 88 model. You look at the NON TURBO diagram for the Starting and Charging System. You'll see two of the three wires connected to the alternator. One will be black/white (BW) and one will be White/Black(WB) and next to WB OR BW will be (EM), indicating that those two wires are a part of the EMISSIONS HARNESS that is on the ENGINE.
On a non turbo or TURBO car, the third wire on the alternator is B and has (E) next to it. It IS a part of the engine harness. It goes from the alt to the engine bay fuse box and is spliced to the black wire that feeds the ignition key assy.
If you go to the TURBO diagram for Starting and Charging, you will see those two wires BW and WB but they will have (E) next to the wire colors. That means the alternator wires are in the ENGINE HARNESS on a Turbo car.
The ENGINE harness runs on the left side of the engine bay and has minor items like the CAS wiring, alternator wiring (turbo cars), coil wires, wires to the engine bay fuse box, starter wires, battery wires (ain't no damn Battery harness).
So the non turbo and the turbo alternator wires are in the EM harness and the E harness respectively. IF you have a White wire with a Blue stripe on the alternator............only god knows why. That would be the color of a series five alternator wire. They use W/L and BW colored wires on the alternator.
If you used a Turbo EM harness on the car, then you have NO altenator wires in any of the wiring on the car. Because the non turbo EM harness carrys the alternator wiring and you thru that away and installed the Turbo EM harness which, again, has no alternator wires.
What harness did you use on the engine? A turboII harness or a non turbo harness? I assume this is a NON TURBO car with a turbo engine.
Just for the record and the ability for you to read the wiring diagrams in the free online wiring manual:
The harness on the engine is the EM harness. That stands for Emissions Harness. In the wiring diagrams you'll see (EM) written next to the color of a given wire that is in the EM harness.
Say you actually look at the free online wiring for a 88 model. You look at the NON TURBO diagram for the Starting and Charging System. You'll see two of the three wires connected to the alternator. One will be black/white (BW) and one will be White/Black(WB) and next to WB OR BW will be (EM), indicating that those two wires are a part of the EMISSIONS HARNESS that is on the ENGINE.
On a non turbo or TURBO car, the third wire on the alternator is B and has (E) next to it. It IS a part of the engine harness. It goes from the alt to the engine bay fuse box and is spliced to the black wire that feeds the ignition key assy.
If you go to the TURBO diagram for Starting and Charging, you will see those two wires BW and WB but they will have (E) next to the wire colors. That means the alternator wires are in the ENGINE HARNESS on a Turbo car.
The ENGINE harness runs on the left side of the engine bay and has minor items like the CAS wiring, alternator wiring (turbo cars), coil wires, wires to the engine bay fuse box, starter wires, battery wires (ain't no damn Battery harness).
So the non turbo and the turbo alternator wires are in the EM harness and the E harness respectively. IF you have a White wire with a Blue stripe on the alternator............only god knows why. That would be the color of a series five alternator wire. They use W/L and BW colored wires on the alternator.
If you used a Turbo EM harness on the car, then you have NO altenator wires in any of the wiring on the car. Because the non turbo EM harness carrys the alternator wiring and you thru that away and installed the Turbo EM harness which, again, has no alternator wires.
Last edited by HAILERS2; 07-28-08 at 08:50 PM.
07-28-08, 09:50 PM
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i ment ign sorry. But its a non turbo harness that runs to the front like under the bumper an to the tail lights. But the engine an the emission harness the one with the cas an the alt on it are from a TII...
What is a *ing* wire?
What harness did you use on the engine? A turboII harness or a non turbo harness? I assume this is a NON TURBO car with a turbo engine.
Just for the record and the ability for you to read the wiring diagrams in the free online wiring manual:
The harness on the engine is the EM harness. That stands for Emissions Harness. In the wiring diagrams you'll see (EM) written next to the color of a given wire that is in the EM harness.
Say you actually look at the free online wiring for a 88 model. You look at the NON TURBO diagram for the Starting and Charging System. You'll see two of the three wires connected to the alternator. One will be black/white (BW) and one will be White/Black(WB) and next to WB OR BW will be (EM), indicating that those two wires are a part of the EMISSIONS HARNESS that is on the ENGINE.
On a non turbo or TURBO car, the third wire on the alternator is B and has (E) next to it. It IS a part of the engine harness. It goes from the alt to the engine bay fuse box and is spliced to the black wire that feeds the ignition key assy.
If you go to the TURBO diagram for Starting and Charging, you will see those two wires BW and WB but they will have (E) next to the wire colors. That means the alternator wires are in the ENGINE HARNESS on a Turbo car.
The ENGINE harness runs on the left side of the engine bay and has minor items like the CAS wiring, alternator wiring (turbo cars), coil wires, wires to the engine bay fuse box, starter wires, battery wires (ain't no damn Battery harness).
So the non turbo and the turbo alternator wires are in the EM harness and the E harness respectively. IF you have a White wire with a Blue stripe on the alternator............only god knows why. That would be the color of a series five alternator wire. They use W/L and BW colored wires on the alternator.
If you used a Turbo EM harness on the car, then you have NO altenator wires in any of the wiring on the car. Because the non turbo EM harness carrys the alternator wiring and you thru that away and installed the Turbo EM harness which, again, has no alternator wires.
What harness did you use on the engine? A turboII harness or a non turbo harness? I assume this is a NON TURBO car with a turbo engine.
Just for the record and the ability for you to read the wiring diagrams in the free online wiring manual:
The harness on the engine is the EM harness. That stands for Emissions Harness. In the wiring diagrams you'll see (EM) written next to the color of a given wire that is in the EM harness.
Say you actually look at the free online wiring for a 88 model. You look at the NON TURBO diagram for the Starting and Charging System. You'll see two of the three wires connected to the alternator. One will be black/white (BW) and one will be White/Black(WB) and next to WB OR BW will be (EM), indicating that those two wires are a part of the EMISSIONS HARNESS that is on the ENGINE.
On a non turbo or TURBO car, the third wire on the alternator is B and has (E) next to it. It IS a part of the engine harness. It goes from the alt to the engine bay fuse box and is spliced to the black wire that feeds the ignition key assy.
If you go to the TURBO diagram for Starting and Charging, you will see those two wires BW and WB but they will have (E) next to the wire colors. That means the alternator wires are in the ENGINE HARNESS on a Turbo car.
The ENGINE harness runs on the left side of the engine bay and has minor items like the CAS wiring, alternator wiring (turbo cars), coil wires, wires to the engine bay fuse box, starter wires, battery wires (ain't no damn Battery harness).
So the non turbo and the turbo alternator wires are in the EM harness and the E harness respectively. IF you have a White wire with a Blue stripe on the alternator............only god knows why. That would be the color of a series five alternator wire. They use W/L and BW colored wires on the alternator.
If you used a Turbo EM harness on the car, then you have NO altenator wires in any of the wiring on the car. Because the non turbo EM harness carrys the alternator wiring and you thru that away and installed the Turbo EM harness which, again, has no alternator wires.
07-28-08, 10:32 PM
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i ment ign sorry. But its a non turbo harness that runs to the front under the bumper an to the tail lights thats a 88 non turbo harness . But the engine harness with the injectors, o2, an the harness with the cas an the alt on it are from a TII ... but i was reading a other post and u said there was no way around this an i had to just run the w/b an the b/w to the cpu an the enigne fuse. is that what im going to have to do to mine https://www.rx7club.com/showthread.p...=alt+no+charge
Last edited by gabs88gxl; 07-28-08 at 10:40 PM.
07-29-08, 05:40 PM
#5
Rotary Freak
i ment ign sorry. But its a non turbo harness that runs to the front under the bumper an to the tail lights thats a 88 non turbo harness . But the engine harness with the injectors, o2, an the harness with the cas an the alt on it are from a TII ... but i was reading a other post and u said there was no way around this an i had to just run the w/b an the b/w to the cpu an the enigne fuse. is that what im going to have to do to mine https://www.rx7club.com/showthread.p...=alt+no+charge
07-29-08, 08:45 PM
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The White/Black isn't important to charging. But the Black/White does need to go to a SWITCHED source of power. The ENGINE fuse is a switched source. But I do believe there is another switched source closer to the alternator. The GREEN six socket Check connector near the Lead coil ***. The black/white wire in it is a switched source of power. You could use that for the black/white.
07-30-08, 02:24 PM
#7
Rotary Freak
The WHITE/BLACK can only work if you run a wire from the alt to the CPU. On the CPU plug you'll find a WHITE/BLACK wire. You just splice into that existing wire with your new wire from the alternator.
But most folk run a new wire from the alt to the ORANGE plug inside the passengers area. This ORANGE plug is one of two ORANGE plugs on the EM harness. ON it you'll find on the EM side of the plug, and Brown/Red wire just above a Brown/Black wire. You remove the brown/black wire and put your new wire in its place. New wire meaning the one that is replacing the WHITE/BLACK wiere of the alternator.
But if you do that, you might as well run both wires from the alternator to that ORANGE plug. The black/white will go where there is a Brown/Red wire right now.
But most folk run a new wire from the alt to the ORANGE plug inside the passengers area. This ORANGE plug is one of two ORANGE plugs on the EM harness. ON it you'll find on the EM side of the plug, and Brown/Red wire just above a Brown/Black wire. You remove the brown/black wire and put your new wire in its place. New wire meaning the one that is replacing the WHITE/BLACK wiere of the alternator.
But if you do that, you might as well run both wires from the alternator to that ORANGE plug. The black/white will go where there is a Brown/Red wire right now.
Last edited by HAILERS2; 07-30-08 at 02:31 PM.
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07-30-08, 07:43 PM
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ok ill just run to them the way i have it now its working ok but i would rather do it in the way u said its more simple an more relable...
The WHITE/BLACK can only work if you run a wire from the alt to the CPU. On the CPU plug you'll find a WHITE/BLACK wire. You just splice into that existing wire with your new wire from the alternator.
But most folk run a new wire from the alt to the ORANGE plug inside the passengers area. This ORANGE plug is one of two ORANGE plugs on the EM harness. ON it you'll find on the EM side of the plug, and Brown/Red wire just above a Brown/Black wire. You remove the brown/black wire and put your new wire in its place. New wire meaning the one that is replacing the WHITE/BLACK wiere of the alternator.
But if you do that, you might as well run both wires from the alternator to that ORANGE plug. The black/white will go where there is a Brown/Red wire right now.
But most folk run a new wire from the alt to the ORANGE plug inside the passengers area. This ORANGE plug is one of two ORANGE plugs on the EM harness. ON it you'll find on the EM side of the plug, and Brown/Red wire just above a Brown/Black wire. You remove the brown/black wire and put your new wire in its place. New wire meaning the one that is replacing the WHITE/BLACK wiere of the alternator.
But if you do that, you might as well run both wires from the alternator to that ORANGE plug. The black/white will go where there is a Brown/Red wire right now.
07-31-08, 03:04 AM
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hailer reall fast a while back when i did my swap i shorted my alternator power in my tmic. an now all my dummy lights are on. i took my cpu out an checked it to make sure nothing had broke. so i just resoider it all anyway an they are still on.. i blew my main when that happen also an when i replaced it is when they stayed on.?
07-31-08, 10:50 AM
#10
Rotary Freak
When you take care of the alternator wires by running them to the ORANGE plug, I think that in turn will take care of the warning lights all being on.
From memory......if you use a Turbo EM harness on a non turbo car and connect it to the non turbo Front harness (half the ORANGE plug is from EM and the other half from Front), you end up putting a ground on the warning light circuit. That makes the warning lights stay on.
From memory......if you use a Turbo EM harness on a non turbo car and connect it to the non turbo Front harness (half the ORANGE plug is from EM and the other half from Front), you end up putting a ground on the warning light circuit. That makes the warning lights stay on.
07-31-08, 01:47 PM
#11
Rotary Freak
When you take care of the alternator wires by running them to the ORANGE plug, I think that in turn will take care of the warning lights all being on.
From memory......if you use a Turbo EM harness on a non turbo car and connect it to the non turbo Front harness (half the ORANGE plug is from EM and the other half from Front), you end up putting a ground on the warning light circuit. That makes the warning lights stay on.
From memory......if you use a Turbo EM harness on a non turbo car and connect it to the non turbo Front harness (half the ORANGE plug is from EM and the other half from Front), you end up putting a ground on the warning light circuit. That makes the warning lights stay on.
Now the wiring in the non turbo EM harness is not exactly the same as in the TURBO EM harness. This results in a problem if the Turbo EM harness is connected to the stock FRONT harness. See the ( ) around some wire colors in each plug? Those are PECULIAR to the TURBO engines.
Look at the EM harness plug half. IT has several ( ) in it. Notice the BW and the WB, one above the other in the EM half of the plug? And how you have (BrR) and (BrB) pointing at the BW and WB? Well the BrB in the TURBO EM harness is a ground wire. So if you make no changes to the Turbo EM harness, then you'll put a ground on the WB wire in the FRONT half of the plug. The WB goes to the alternator relay in the CPU. If you put a gnd on that relay, the warning lights stay on all the time.
But your going to take care of that problem. Your going to cut the BrB and BrR wires on the EM half of the ORAGNE plug. You cut them about two inches back from the plug, and attach your two new alternator wires to the cut wires in the plug. Now the alternator wires will go where they should and things will work alternator wise. The other end of those two cut wires should at least have some elect tape put on their ends or shrink tubing. The BrB is a gnd so it wouldn't hurt if it touched gnd, but the BrR is spliced to the output of the boost sensor and if it touches gnd.............sad things will happen.
'There are some other ( ) wires in those two ORANGE plugs that are peculiar to the TURBO vs non turbo. Most don't matter. One or two others do kind of.
07-31-08, 02:16 PM
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thank you so much so much of help. im goin to do that in a little bit im working on a friends car right now i have to splice the vdi to the knock real fast, an then ill do mine. ill let u know how it goes when i get it all goin
Look at the jpg I attached of the ORANGE plug. Each plug has two halves. One half is on the EM harness. The other is on the FRONT harness. Keep that in mind.
Now the wiring in the non turbo EM harness is not exactly the same as in the TURBO EM harness. This results in a problem if the Turbo EM harness is connected to the stock FRONT harness. See the ( ) around some wire colors in each plug? Those are PECULIAR to the TURBO engines.
Look at the EM harness plug half. IT has several ( ) in it. Notice the BW and the WB, one above the other in the EM half of the plug? And how you have (BrR) and (BrB) pointing at the BW and WB? Well the BrB in the TURBO EM harness is a ground wire. So if you make no changes to the Turbo EM harness, then you'll put a ground on the WB wire in the FRONT half of the plug. The WB goes to the alternator relay in the CPU. If you put a gnd on that relay, the warning lights stay on all the time.
But your going to take care of that problem. Your going to cut the BrB and BrR wires on the EM half of the ORAGNE plug. You cut them about two inches back from the plug, and attach your two new alternator wires to the cut wires in the plug. Now the alternator wires will go where they should and things will work alternator wise. The other end of those two cut wires should at least have some elect tape put on their ends or shrink tubing. The BrB is a gnd so it wouldn't hurt if it touched gnd, but the BrR is spliced to the output of the boost sensor and if it touches gnd.............sad things will happen.
'There are some other ( ) wires in those two ORANGE plugs that are peculiar to the TURBO vs non turbo. Most don't matter. One or two others do kind of.
Now the wiring in the non turbo EM harness is not exactly the same as in the TURBO EM harness. This results in a problem if the Turbo EM harness is connected to the stock FRONT harness. See the ( ) around some wire colors in each plug? Those are PECULIAR to the TURBO engines.
Look at the EM harness plug half. IT has several ( ) in it. Notice the BW and the WB, one above the other in the EM half of the plug? And how you have (BrR) and (BrB) pointing at the BW and WB? Well the BrB in the TURBO EM harness is a ground wire. So if you make no changes to the Turbo EM harness, then you'll put a ground on the WB wire in the FRONT half of the plug. The WB goes to the alternator relay in the CPU. If you put a gnd on that relay, the warning lights stay on all the time.
But your going to take care of that problem. Your going to cut the BrB and BrR wires on the EM half of the ORAGNE plug. You cut them about two inches back from the plug, and attach your two new alternator wires to the cut wires in the plug. Now the alternator wires will go where they should and things will work alternator wise. The other end of those two cut wires should at least have some elect tape put on their ends or shrink tubing. The BrB is a gnd so it wouldn't hurt if it touched gnd, but the BrR is spliced to the output of the boost sensor and if it touches gnd.............sad things will happen.
'There are some other ( ) wires in those two ORANGE plugs that are peculiar to the TURBO vs non turbo. Most don't matter. One or two others do kind of.
08-01-08, 07:29 PM
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sweet well my lights went off an all that fun stuff. but im having a major problem now. got all the wires on right an made sure i went to the right plug right wires. now when i turn the key off the car stays on. i was reading some other post an a lot of people said this happened to them ,an it was there alternator. so im goin to change mine cause i have a other one an ill let u know if it stops.
Look at the jpg I attached of the ORANGE plug. Each plug has two halves. One half is on the EM harness. The other is on the FRONT harness. Keep that in mind.
Now the wiring in the non turbo EM harness is not exactly the same as in the TURBO EM harness. This results in a problem if the Turbo EM harness is connected to the stock FRONT harness. See the ( ) around some wire colors in each plug? Those are PECULIAR to the TURBO engines.
Look at the EM harness plug half. IT has several ( ) in it. Notice the BW and the WB, one above the other in the EM half of the plug? And how you have (BrR) and (BrB) pointing at the BW and WB? Well the BrB in the TURBO EM harness is a ground wire. So if you make no changes to the Turbo EM harness, then you'll put a ground on the WB wire in the FRONT half of the plug. The WB goes to the alternator relay in the CPU. If you put a gnd on that relay, the warning lights stay on all the time.
But your going to take care of that problem. Your going to cut the BrB and BrR wires on the EM half of the ORAGNE plug. You cut them about two inches back from the plug, and attach your two new alternator wires to the cut wires in the plug. Now the alternator wires will go where they should and things will work alternator wise. The other end of those two cut wires should at least have some elect tape put on their ends or shrink tubing. The BrB is a gnd so it wouldn't hurt if it touched gnd, but the BrR is spliced to the output of the boost sensor and if it touches gnd.............sad things will happen.
'There are some other ( ) wires in those two ORANGE plugs that are peculiar to the TURBO vs non turbo. Most don't matter. One or two others do kind of.
Now the wiring in the non turbo EM harness is not exactly the same as in the TURBO EM harness. This results in a problem if the Turbo EM harness is connected to the stock FRONT harness. See the ( ) around some wire colors in each plug? Those are PECULIAR to the TURBO engines.
Look at the EM harness plug half. IT has several ( ) in it. Notice the BW and the WB, one above the other in the EM half of the plug? And how you have (BrR) and (BrB) pointing at the BW and WB? Well the BrB in the TURBO EM harness is a ground wire. So if you make no changes to the Turbo EM harness, then you'll put a ground on the WB wire in the FRONT half of the plug. The WB goes to the alternator relay in the CPU. If you put a gnd on that relay, the warning lights stay on all the time.
But your going to take care of that problem. Your going to cut the BrB and BrR wires on the EM half of the ORAGNE plug. You cut them about two inches back from the plug, and attach your two new alternator wires to the cut wires in the plug. Now the alternator wires will go where they should and things will work alternator wise. The other end of those two cut wires should at least have some elect tape put on their ends or shrink tubing. The BrB is a gnd so it wouldn't hurt if it touched gnd, but the BrR is spliced to the output of the boost sensor and if it touches gnd.............sad things will happen.
'There are some other ( ) wires in those two ORANGE plugs that are peculiar to the TURBO vs non turbo. Most don't matter. One or two others do kind of.
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