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Old 10-19-2006, 08:24 PM   #1
vtec.dc2
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Default Help! How to wire Denso universal O2 sensor

Trying to replace 4 wire O2 sensor. OEM has 2 black, 1 white and 1 green
Replacement has 2 black, 1 white and 1 blue. black heater wire will go with black.. but what about the other 2? on oxygen sensor white is ground and blue is signal.. what about oem?
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Old 10-20-2006, 04:32 AM   #2
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Default Re: Help! How to wire Denso universal O2 sensor (vtec.dc2)

white - O2 signal
green - O2 ground
black - heater
black - heater

black to black
black to black
blue to white
white to green
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Old 10-20-2006, 12:14 PM   #3
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Default

Click the image to open in full size.

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Old 10-20-2006, 02:43 PM   #4
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Default Re: (mugenracer)

50/50?

i didn't even look to see it came with manual.. so i'll go by that.. green to white and white to blue
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Old 10-20-2006, 03:03 PM   #5
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Default Re: Help! How to wire Denso universal O2 sensor (vtec.dc2)

http://honda-tech.com/zerothread?id=1664210
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Old 10-20-2006, 05:07 PM   #6
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Default Re: (vtec.dc2)

Quote:
Originally Posted by vtec.dc2
50/50?

i didn't even look to see it came with manual.. so i'll go by that.. green to white and white to blue
the wiring diagram i posted is correct, i have used it myself and have given it to others and it works 100%.

Black > Black
Black > Black
White > White
Blue > Green
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Old 10-20-2006, 05:52 PM   #7
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Default Re: (mugenracer)

blue is the signal wire on the denso sensor and white on the car is the signal

blue to white
white to green
black to black
black to black READ THE DENSO DIAGRAM THEY GIVE U!!
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Old 10-21-2006, 12:01 PM   #8
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Default Re: Help! How to wire Denso universal O2 sensor (Mr.RHTuner)

Quote:
Originally Posted by Mr.RHTuner
i'm using denso, that ebay link doesn't sell that.. there nothing specific in that thread.. at least nothing that answers my question..
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Old 10-21-2006, 12:03 PM   #9
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Default Re: (DeDonDeRosa)

Quote:
Originally Posted by DeDonDeRosa
blue is the signal wire on the denso sensor and white on the car is the signal

blue to white
white to green
black to black
black to black READ THE DENSO DIAGRAM THEY GIVE U!!
yeah, denso diagrahm offers 2 connection types for honda, however, the connector type that i have uses blue to white and white to green. i don't know how its wired up internally.. maybe it don't make a difference if you swap the 2 with one another.. but i'll go with what DeDonDeRosa says and diagrahm. thanks all for helping
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Old 10-28-2006, 01:29 PM   #10
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Default Re: (mugenracer)

Quote:
Originally Posted by mugenracer
Click the image to open in full size.

This picture is WRONG!

I just connected white to blue, and green to white and got rid of CEL light.

First I tried as in your picture and CEL was coming back. Maybe it's different in europe ( I see you are from Europe), but I doub't it.

Here is official NGK website, which shows both DENSO sensors.

Signal + White = Blue
Signal - Green= White
Heater Black=Black
Heater Black=Black

http://www.ngk.com/glossaryImage.asp?imgID=309


98 Honda Civic HX
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Old 10-28-2006, 01:52 PM   #11
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Default Re: Help! How to wire Denso universal O2 sensor (vtec.dc2)

Quote:
Originally Posted by vtec.dc2
i'm using denso, that ebay link doesn't sell that.. there nothing specific in that thread.. at least nothing that answers my question..

no need to be a ******...******.... regardless of what 'brand' the sensor is, the hookup if will be the same if the wiring colors match
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Old 10-28-2006, 02:13 PM   #12
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Default Re: Help! How to wire Denso universal O2 sensor (Mr.RHTuner)

Quote:
Originally Posted by Mr.RHTuner


no need to be a ******...******.... regardless of what 'brand' the sensor is, the hookup if will be the same if the wiring colors match

Could you support your instructions you posted in another post ?
I don't want to be arrogant, but I think you are wrong.

Green wire on original Honda Denso sensor is not a signal wire.
Signal wire is white.

I can confirm this with NGK website >
http://www.ngk.com/glossaryImage.asp?imgID=309
Look for Honda and 4 wire sensors. There are two denso sensors
Blue = White >> Signal +
White= Green >>Signal Ground


In Honda Service manual it shows that White is Signal wire and Green is ground.


And lastly, I just replaced the wires myself and can confirm that white to blue, and green to white is right way to connect.

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