where do these plugs go? almost done with the wiring harness
08-31-05, 06:25 PM
#1
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where do these plugs go? almost done with the wiring harness
ok just got the main part of the engine wiring harnss done but there are some plugs here that i have no idea where they go... and one of them i think should be on the other side of hte engine bay.
i have a s4 wiring harness and ecu, but i have a s5 engine
-- these plugs i think go to my acv, and the reds go to the secondary injectors--
--yea i have no idea where any one of these go, although i am pretty sure that the middle one goes to the tps--
--this one is key, i am almost positive that it should connect to the BAC, but it is on the completely wrong side of the engine bay (driver instead of passenger) but it is in the same taped area as the knock sensor--
--now this little bugger is weird... from teh look of it it is exatly the same on my 88 NA's temp sensor (the sensor in front of the oil pressure sendign unit), but on my t2 there is a 2 **** plug instead of the nipple--
any and all help would be awesome, the sonner i get this all connected the happier i will be
i have a s4 wiring harness and ecu, but i have a s5 engine
-- these plugs i think go to my acv, and the reds go to the secondary injectors--
--yea i have no idea where any one of these go, although i am pretty sure that the middle one goes to the tps--
--this one is key, i am almost positive that it should connect to the BAC, but it is on the completely wrong side of the engine bay (driver instead of passenger) but it is in the same taped area as the knock sensor--
--now this little bugger is weird... from teh look of it it is exatly the same on my 88 NA's temp sensor (the sensor in front of the oil pressure sendign unit), but on my t2 there is a 2 **** plug instead of the nipple--
any and all help would be awesome, the sonner i get this all connected the happier i will be
08-31-05, 06:41 PM
#2
I R SAD PANDA W/O BAW
1) looks like ACV and BAC (hard to tell from pix)
2) air intake temp sensor on TB, CAS, not sure of the third (from top to bottom)
3) looks like waterthermosensor on the back of the waterpump
4) oil pressure sender below the oil filter pedastal
Someone correct me if I'm wrong on any of them.
2) air intake temp sensor on TB, CAS, not sure of the third (from top to bottom)
3) looks like waterthermosensor on the back of the waterpump
4) oil pressure sender below the oil filter pedastal
Someone correct me if I'm wrong on any of them.
08-31-05, 07:28 PM
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If it's the BAC plug, it will have a black/white wire and a light green wire.
If it's for the water thermo sensor, it will have a green/white wire and a black wire (possible a brown/black wire instead of pure black on some cars)
The picture that says *temp sensor* is for the water temp sensor near the oil pressure sensor.
The ACV two solenoids wire colors are black/white and brown/red for one connector and the other connector is black/white and blue/black.
The *no idea* seems to be tps plug, air inlet temp sensor and ??????.
Is this a non turbo engine???????? IF turbo I'd say the ???????? plug might be the knock connnector.
If it's for the water thermo sensor, it will have a green/white wire and a black wire (possible a brown/black wire instead of pure black on some cars)
The picture that says *temp sensor* is for the water temp sensor near the oil pressure sensor.
The ACV two solenoids wire colors are black/white and brown/red for one connector and the other connector is black/white and blue/black.
The *no idea* seems to be tps plug, air inlet temp sensor and ??????.
Is this a non turbo engine???????? IF turbo I'd say the ???????? plug might be the knock connnector.
08-31-05, 07:34 PM
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I could do better with the *no idea* picture if told how many wires in the plug and what the colors are. It's possible one of them is for the air bypass solenoid on a series four non turbo. The colors would be black/white and the other brown/yellow.
Do you already have a green colored connector going to the water thermo sensor at the back of the water pump housing???? If you do, then that one in the picture is probably the BAC plug since on a non turbo the bac is on the left of the engine.
Do you already have a green colored connector going to the water thermo sensor at the back of the water pump housing???? If you do, then that one in the picture is probably the BAC plug since on a non turbo the bac is on the left of the engine.
08-31-05, 07:55 PM
#5
I R SAD PANDA W/O BAW
Whoops what I said was the CAS connector is the TPS. Thanks for the correction hailers.
Also I'm pretty sure it'd a turbo engine since it has the bracket for the TMIC and also th knock sensor mounted on that same bracket to the left in picture 3 as well as the turbo oil filler neck.
Also I'm pretty sure it'd a turbo engine since it has the bracket for the TMIC and also th knock sensor mounted on that same bracket to the left in picture 3 as well as the turbo oil filler neck.
08-31-05, 08:29 PM
#6
ok well ur rite about the one that plugs into the BAC but on the s5 engine its on the other side of the engine. and the S4 has the BAC on the dynamic chamber. so ur gonna have to do some extending or cutting of the wire if u want to plug it in. Or u could just remove the whole system like mine 
09-01-05, 12:18 PM
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it is a turbo, and if you look the knock sensro is already pluged in.
on the second picture if you look at the bottom of it you can see that thte temp plug to the back of the water pum phousing is already pluged in. i will get wire colors once i get back from work
on the second picture if you look at the bottom of it you can see that thte temp plug to the back of the water pum phousing is already pluged in. i will get wire colors once i get back from work
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09-01-05, 05:34 PM
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Yeah. I now see the water thermo sensor in the lower right hand corner.
A TPS on a series four car has three wires. One black (possible brown/black on some cars), one green/red and the other brown/white.
The air inlet temp sensor plug is small and has two wires. One is green the other black.
The *Temp Sensor*, IS for the water temp sensor.
There should also be TWO connectors that run from the left side of the engine towards the right rear. They are for the Air Supply VAlve and the Air Bypass Solenoid. They have colors of Brown/Yellow and black/white for the air bypass solenoid and light green/black and black/white for the Air Supply Valve.
One is located on the back of the upper intake manifold and the other on top right of the upper intake manifold.
It's possible that we ID'd these as for the two solneoids on the ACV. Maybe, maybe not. Depends on colors.
A TPS on a series four car has three wires. One black (possible brown/black on some cars), one green/red and the other brown/white.
The air inlet temp sensor plug is small and has two wires. One is green the other black.
The *Temp Sensor*, IS for the water temp sensor.
There should also be TWO connectors that run from the left side of the engine towards the right rear. They are for the Air Supply VAlve and the Air Bypass Solenoid. They have colors of Brown/Yellow and black/white for the air bypass solenoid and light green/black and black/white for the Air Supply Valve.
One is located on the back of the upper intake manifold and the other on top right of the upper intake manifold.
It's possible that we ID'd these as for the two solneoids on the ACV. Maybe, maybe not. Depends on colors.
09-01-05, 05:58 PM
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the acv is the smog/air pump correct? it runs off the main pully and is on the passenger side of hte engine bay.
if so i removed it so those plugs would go to nothing
if so i removed it so those plugs would go to nothing
09-01-05, 07:12 PM
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oh ok, yea i removed that as well
kk here are the colors of the wires for some of the plugs
the temp sensor is yellow with a white stripe
and the possible BAC plug is black with a brown stripe, and the other wire is black
loking at my engine bay i notice that i dont know what the O2 sensor plugs into, could it be that bottom plug on picture 2?
also there is a plug for something on my oil pan, what does that sensor read, and what harness does it plug into?
kk here are the colors of the wires for some of the plugs
the temp sensor is yellow with a white stripe
and the possible BAC plug is black with a brown stripe, and the other wire is black
loking at my engine bay i notice that i dont know what the O2 sensor plugs into, could it be that bottom plug on picture 2?
also there is a plug for something on my oil pan, what does that sensor read, and what harness does it plug into?
09-02-05, 08:27 AM
#13
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Originally Posted by FC3Slider
it is a turbo, and if you look the knock sensro is already pluged in.
The knock sensor is plugged in, yes, but you just plugged your knock sensor into the O2 sensor plug. :P
So, the second to the bottom pic is a pic of the BAC valve plug.
Unplug the knock sensor, and plug it into the O2 sensor!
BTW, the plugs for the secondary fuel injectors CANNOT be on the same branch of the harness.
Each pair of fuel injectors are either for FRONT or REAR rotor, so one is primary and the other is secondary.
The LONG side is the secondary.
How do you tell which is FRONT and which one is REAR???
The FRONT pair will also have the water thermo sensor plug on it - green, rectangular plug that looks like the BAC valve plug.
-Ted
09-02-05, 12:14 PM
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in every single one of my 7s, i have had 4 of them the secondaries were always on its own branch.
and the knock sesor plug, is connected to teh knock sesor. there is another plug that looks exatly like that in picture 2 , the last plug. that last plug is the o2 sensor plug
and the knock sesor plug, is connected to teh knock sesor. there is another plug that looks exatly like that in picture 2 , the last plug. that last plug is the o2 sensor plug
09-02-05, 02:28 PM
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The Yellow IS the water temp sensor wire for sure. So we're done with that.
We're almost positive that IS the BAC plug. The colors get discolored. If you cut some of the surrounding cover off the wires I'm sure you'll find a black/white wire and the other is really Light Green.
The O2 wire will be a shielded wire. It originally had a Grey covering on it. A shielded wire means there is a mesh of criss crossed wiring covering the inner or center conductor. To be sure, just ohm that end of the wire out to the pin 2D on the ECU's center plug.
If you have one plug/sensor in the pan it is the Oil Low Level sensor. Some have two sensors, but sense you said ONE sensor, then it's the Oil Low Level Sensor. It should get the RED/WHITE wire connected to it.
On my cars, the secondarys are on one branch and the primarys on another. What else can I say.
The front primary should have a brown wire and a light green wire.
The rear primary should have a brown/red wire and a light green/black wire.
The front secondary should have a light green white wire and a Brown/white wire.
The rear secondary should have a light green/red wire and a brown/yellow wire.
To make sure the bac and the water thermo plugs are not swapped, see if the water thermo plug on the back of the water pump housing has a green/white wire and a brown/black wire (the brown/black might be pure black instead).
We're almost positive that IS the BAC plug. The colors get discolored. If you cut some of the surrounding cover off the wires I'm sure you'll find a black/white wire and the other is really Light Green.
The O2 wire will be a shielded wire. It originally had a Grey covering on it. A shielded wire means there is a mesh of criss crossed wiring covering the inner or center conductor. To be sure, just ohm that end of the wire out to the pin 2D on the ECU's center plug.
If you have one plug/sensor in the pan it is the Oil Low Level sensor. Some have two sensors, but sense you said ONE sensor, then it's the Oil Low Level Sensor. It should get the RED/WHITE wire connected to it.
On my cars, the secondarys are on one branch and the primarys on another. What else can I say.
The front primary should have a brown wire and a light green wire.
The rear primary should have a brown/red wire and a light green/black wire.
The front secondary should have a light green white wire and a Brown/white wire.
The rear secondary should have a light green/red wire and a brown/yellow wire.
To make sure the bac and the water thermo plugs are not swapped, see if the water thermo plug on the back of the water pump housing has a green/white wire and a brown/black wire (the brown/black might be pure black instead).
09-02-05, 02:31 PM
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Just looked at the pictue again. I've decided you do have the bac and water thermo sensors crossed up.
The bac plug should have been closer to the yellow wire that is the water temp sensor wire. To me those two look to be on the same leg. (series four, non-turbo harness here, NOT a turboii harness).
I see now why you were wondering about the yellow wire. I won't reach the sensor from where you show it. It will reach once you unplug the bac plug from the water thermo sensor and let that branch move to the left side of the engine where it belongs.
The bac plug should have been closer to the yellow wire that is the water temp sensor wire. To me those two look to be on the same leg. (series four, non-turbo harness here, NOT a turboii harness).
I see now why you were wondering about the yellow wire. I won't reach the sensor from where you show it. It will reach once you unplug the bac plug from the water thermo sensor and let that branch move to the left side of the engine where it belongs.
Last edited by HAILERS; 09-02-05 at 02:38 PM.
09-03-05, 12:55 AM
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kk thanks for the info
and i can see how the plugs are for front and rear housings.
the bac and water pump connections i think were switched. so i switched them... it makes more sence the way it is now...
that extra plug that looks just liek the knock sensor plug actually went to teh o2 sensor.
'
so problem solved and i will show pictures of exatly what the plugs go to when i have the time to have fun with paint
and i can see how the plugs are for front and rear housings.
the bac and water pump connections i think were switched. so i switched them... it makes more sence the way it is now...
that extra plug that looks just liek the knock sensor plug actually went to teh o2 sensor.
'
so problem solved and i will show pictures of exatly what the plugs go to when i have the time to have fun with paint
