has anyone in here with a 92-93 have the colors as their alternator wires??? my 92-93 integra harness came with these colors from factory they are not aftermarket. which is weird. usually obd1 has 3 cables and they different colors…
this is the colors on my factory harness…
yellow/ with black stripe
orange
green
white ( with gray cover) no lines… i traced the cables deper into the harness and the white has like a gray shell
the wire colors on my OBD2 plugs are…
black/ yelow stripe
white/ red stripe
white/blue stripe
white/green stripe
i have a obd2 alternator on my b20 vtev…
the plug on my oem harness was a gray square plug little smaller than the obd2 plug on my alternator. i cutted the wires and wired it up guessing cuz i could not find any diagram that shows those wire colors… on my 92-93 integra harness.
i took a obd2 alternator plug from another harness and cutted it… and i wired it to my obd1 harness and the plug fitted right in,
tested the battery … with different color combinations… finally got one that worked and these were the results…
car off - 12.2v
car on with alternator connected 13.5v-13.7v so im guessing the alternator is charging if im getting that voltage…
if anyone know some ingisgt as to which wire color is what on my obd1 harness let me know thanks… for now its charging the battery but idk if maybe i did connected something wrong.
Oh man, I just went through a similar nightmare with my o2 sensor. The only way I found an answer was old school, tracing the wires back to the ecu and locating the pinout online. This told me which wires served each function. There is a chance though someone will have the answer…
Something seems fishy here because your original harness should not have had a square gray plug on it (or those wire colors), it should have been a round green plug. When I redid the wiring on my DB2 I changed to the gray plug so that I could use newer (easier to find) alternators.
The wires you’re showing look like O2 sensor wires, not alternator wires. Your description of the wire colors is wrong - the main color always goes first, then the stripe is the second color. So the wires you pictured are:
YEL/BLK
ORG
GRN/WHT
WHT
Those are the exact wire colors for the heated O2 sensor. AND the confirmation for me is that the WHT wire for the O2 sensor is shielded and so is the one in your pic (the extra gray covering which houses some silver colored shielding wire).
Factory wire colors for your 92-93 alternator should be:
WHT: This wire runs to fuse #30
BLK/YEL: This wire leads back to the #24 fuse (which is also connector to a bunch of other things, including the charging system light in the gauge cluster)
WHT/BLU: This is from the voltage regulator in the alternator and leads to the charging system light in the gauge cluster
BLU: This wire goes to the ECU
There’s plenty of good info in your Helms manual to help you sort through anything you may be trying to figure out.
[QUOTE=Colin;2335050]Something seems fishy here because your original harness should not have had a square gray plug on it (or those wire colors), it should have been a round green plug. When I redid the wiring on my DB2 I changed to the gray plug so that I could use newer (easier to find) alternators.
The wires you’re showing look like O2 sensor wires, not alternator wires. Your description of the wire colors is wrong - the main color always goes first, then the stripe is the second color. So the wires you pictured are:
YEL/BLK
ORG
GRN/WHT
WHT
Those are the exact wire colors for the heated O2 sensor. AND the confirmation for me is that the WHT wire for the O2 sensor is shielded and so is the one in your pic (the extra gray covering which houses some silver colored shielding wire).
Factory wire colors for your 92-93 alternator should be:
WHT: This wire runs to fuse #30
BLK/YEL: This wire leads back to the #24 fuse (which is also connector to a bunch of other things, including the charging system light in the gauge cluster)
WHT/BLU: This is from the voltage regulator in the alternator and leads to the charging system light in the gauge cluster
BLU: This wire goes to the ECU
There’s plenty of good info in your Helms manual to help you sort through anything you may be trying to figure out.[/QUOTE]
my harness never came with a green plug… which is the standard OBD1 plug that i know for sure its an alternator wire… now here is the weird thing… if those are heated 02 sensors then how come my battery voltage goes from 12v to 13.5v when car is on… when i conect them to the alternator… this is all very confusing… i even traced the factory harness deeper to see if there was any trace of the 3 oem wire for the alternator in case they were cut off… but no trace of wires cut.???
and do you have a diagram??? for the fuses you indicated
WHT: This wire runs to fuse #30 ( which fuse is this? in or out box? )
BLK/YEL: This wire leads back to the #24 fuse (which is also connector to a bunch of other things, including the charging system light in the gauge cluster)
is this the black and yellow? wire by the shock tower plug on the passager side?
WHT/BLU: This is from the voltage regulator in the alternator and leads to the charging system light in the gauge cluster
which light in the gauge cluster??? some pics!!! would be awesome! right now !
BLU: This wire goes to the ECU blue goes to where in the ecu??? which conector?
wao… what a fail… here i am breaking my head over some O2 wire thinking they alternator wires…
A lot of the wires for these things are connected, so it’s not impossible that it’s indirectly routed in such a way that it works. AND, more importantly, the voltage change you’re witnessing is in large part due to the other wire - the large white wire that leads from the single post terminal on the alternator. It’s that wire that supplies the added voltage to the battery. The other 4 wires on the connector in question play other roles - most of which I honestly am not versed in.
I think that your harness may have been hacked up at some point before you owned the car or the harness was changed. The fact that the wire colors match and there is that shielding wire make me very confident that the 4 wires you pictured are supposed to be for the O2 sensor. Of course if someone previously hacked up a harness they could have used some O2 sensor wires and used them for the alternator while they were rewiring things. Odd, but possible.
[QUOTE=StrictlyDA’s;2335054]and do you have a diagram??? for the fuses you indicated
WHT: This wire runs to fuse #30 ( which fuse is this? in or out box? )
BLK/YEL: This wire leads back to the #24 fuse (which is also connector to a bunch of other things, including the charging system light in the gauge cluster)
is this the black and yellow? wire by the shock tower plug on the passager side?
WHT/BLU: This is from the voltage regulator in the alternator and leads to the charging system light in the gauge cluster
which light in the gauge cluster??? some pics!!! would be awesome! right now !
BLU: This wire goes to the ECU blue goes to where in the ecu??? which conector?
wao… what a fail… here i am breaking my head over some O2 wire thinking they alternator wires…[/QUOTE]
I take it based on your questions that you do not have a Helms manual. You should not be tackling this project without one. It’s got all this info in there. If you need a copy of the Helms shoot me an email.
The light in the gauge cluster is the one with the battery symbol on it - it’s the only light on the dash that relates to the charging system (basically it only lights up when the alternator is not boosting the voltage past the battery’s normal 12v).
[QUOTE=Colin;2335055]A lot of the wires for these things are connected, so it’s not impossible that it’s indirectly routed in such a way that it works. AND, more importantly, the voltage change you’re witnessing is in large part due to the other wire - the large white wire that leads from the single post terminal on the alternator. It’s that wire that supplies the added voltage to the battery. The other 4 wires on the connector in question play other roles - most of which I honestly am not versed in.
I think that your harness may have been hacked up at some point before you owned the car or the harness was changed. The fact that the wire colors match and there is that shielding wire make me very confident that the 4 wires you pictured are supposed to be for the O2 sensor. Of course if someone previously hacked up a harness they could have used some O2 sensor wires and used them for the alternator while they were rewiring things. Odd, but possible.[/QUOTE]
yeah so weird… i went to the dyno yesterday and tuned my car just like that… the tuner told me voltage was perfect and the car ran fine. we tuned the car… i even explain to him the issue and just as me he was shock, but surprisingly the voltage was good, the battery was charging and the car ran and tune perfect… idk… at this point i dont know if i should leave it how it is… or try to fix it.
this harness was a harness that i brought it never came with the car. its a 92-93 DA harness non vtec…
i even try another battery
the voltage was 12.4 car off
with car on 14.2
this was a brand new battery so it was fully charged and full power.
