Heated oxygen sensor wiring
Moderators: Growler, jif, SLYDIT, brownie
Heated oxygen sensor wiring
Does anyone have or know the wiring for a heated oxygen sensor to fit a 1992 NA?
Cheers
Cheers
warrior
-
- Hey. They are NOT Training wheels.
- Posts: 18
- Joined: Tue Dec 24, 2013 1:21 am
- Location: Pie land north west UK
-
- I have stars, you haven't. Deal with it
- Posts: 1293
- Joined: Wed Dec 24, 2008 11:35 am
- Location: 36.8167° S, 174.4167° E
What brand and how many wires?
Mine is a four wire and I installed it like this..
Red= +12v
Black= ground
White connects to the single wire,was black in my car [connector by the cas] from the old sensor that goes to the ecu
Blue is used for aux datalogging such as lap-top if required.
Mine is a four wire and I installed it like this..
Red= +12v
Black= ground
White connects to the single wire,was black in my car [connector by the cas] from the old sensor that goes to the ecu
Blue is used for aux datalogging such as lap-top if required.
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
Surfboard
Push-bike
Hiking shoes
1998 NB 1800
2005 NC 2000
1990 Landcruiser
Surfboard
Push-bike
Hiking shoes
-
- Need, more, 5-ing, time....
- Posts: 153
- Joined: Thu Feb 28, 2008 8:35 pm
- Location: north shore
wot i'm not sure which brand of sensor you are useing but that wiring looks wrong to me the most common 4 wire sensors are wired
Grey (signal ground) or White
White (heater) or Black
White (heater) or Black
Black (signal) or Blue
i think your should be
blue(signal ground)
red(heater)
black (heater)
white (signal)
i have never seen a 4 wire with 2 outputs
Grey (signal ground) or White
White (heater) or Black
White (heater) or Black
Black (signal) or Blue
i think your should be
blue(signal ground)
red(heater)
black (heater)
white (signal)
i have never seen a 4 wire with 2 outputs
-
- I have stars, you haven't. Deal with it
- Posts: 1293
- Joined: Wed Dec 24, 2008 11:35 am
- Location: 36.8167° S, 174.4167° E
-
- I have stars, you haven't. Deal with it
- Posts: 1293
- Joined: Wed Dec 24, 2008 11:35 am
- Location: 36.8167° S, 174.4167° E
-
- I have stars, you haven't. Deal with it
- Posts: 1293
- Joined: Wed Dec 24, 2008 11:35 am
- Location: 36.8167° S, 174.4167° E
As I posted earlier the 4th is for an auxiliary input such as laptop,etc. if you are in to that sort of thing.warrior wrote:Thanks, any advantage/dis with going to a 3 wire?
and if I had to go to a four wire where does there extra wire go to?
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
Surfboard
Push-bike
Hiking shoes
1998 NB 1800
2005 NC 2000
1990 Landcruiser
Surfboard
Push-bike
Hiking shoes
-
- Need, more, 5-ing, time....
- Posts: 153
- Joined: Thu Feb 28, 2008 8:35 pm
- Location: north shore
a narrow band sensor has 1,3or 4 wires , 1wire is not heated,a 3 wire is heated and asignal ,a 4 wire is heated has a sgnal and a signal earth more acurat than a 3 wire .
a wide band sensor is heated, a signal out,a signal ground and a 5v in.
W O T you are looking at the gauge out puts not the sensor .
a wide band sensor is heated, a signal out,a signal ground and a 5v in.
W O T you are looking at the gauge out puts not the sensor .
-
- I have stars, you haven't. Deal with it
- Posts: 1293
- Joined: Wed Dec 24, 2008 11:35 am
- Location: 36.8167° S, 174.4167° E
Cheers 2low2c...then perhaps this may help warrior?
http://mymiata.paladinmicro.com/Miata4-WireO2.htm
http://mymiata.paladinmicro.com/4-WireInstall.pdf
http://mymiata.paladinmicro.com/Miata4-WireO2.htm
http://mymiata.paladinmicro.com/4-WireInstall.pdf
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
Surfboard
Push-bike
Hiking shoes
1998 NB 1800
2005 NC 2000
1990 Landcruiser
Surfboard
Push-bike
Hiking shoes
-
- I have stars, you haven't. Deal with it
- Posts: 1293
- Joined: Wed Dec 24, 2008 11:35 am
- Location: 36.8167° S, 174.4167° E
-
- Need, more, 5-ing, time....
- Posts: 185
- Joined: Tue Feb 12, 2013 12:00 pm
- Location: Sth Canterbury
Maybe they just say further downstream for turbos? I know innovate say at least 8 inches from the turbo and as far as possible before the cat. My standard o2 sensor is very close to the head on the no. 4 pipe of the extractors so will only be working on one cylinder anyway.
99 NB MX5
91 NA MX5
92 B2600 offroad
Because RWD is ALWAYS more fun
91 NA MX5
92 B2600 offroad
Because RWD is ALWAYS more fun
-
- I have stars, you haven't. Deal with it
- Posts: 1293
- Joined: Wed Dec 24, 2008 11:35 am
- Location: 36.8167° S, 174.4167° E
Ok just picked up a wideband and I need a bit of help with the wireing. It has a controller box that I am unsure on a couple of wires. The gauge and oxygen sensor plug into the controller box then the wires feed from there. The first four wires called the power harness look easy.....
black, engine ground
white, 12v + ignition swith
red, battery
orange, headlight switch 12v (+)
Then there are three wires that come out of the controller box I am unsure of. The output is called the analog output.
this is what the instructions say.
black, ground ( no problems there)
Here are the two I am unsure of
brown, wideband analog output 0-5v
green, narrow band analog output 0-1v
if someone could help on where the last two wires go that would be great.
black, engine ground
white, 12v + ignition swith
red, battery
orange, headlight switch 12v (+)
Then there are three wires that come out of the controller box I am unsure of. The output is called the analog output.
this is what the instructions say.
black, ground ( no problems there)
Here are the two I am unsure of
brown, wideband analog output 0-5v
green, narrow band analog output 0-1v
if someone could help on where the last two wires go that would be great.
warrior
-
- Keep calm, Forum Moderator here.
- Posts: 1610
- Joined: Sun May 21, 2006 6:18 pm
- Location: In the Garage.
what sort of wideband is it?
is it a gauge or controller? why do you need a headlight input on the power??
the two analogue outputs are...one signal wire outputs a 0-1volt signal just like a narrowband. so if you were running a standard ECU, this wire would hook up to the standard 02 sensor wire to the ECU the other is 0-5 volts which is more accurate and often hooked into data loggers and after market ECU's for tuning/logging.
what ECU do you run?
is it a gauge or controller? why do you need a headlight input on the power??
the two analogue outputs are...one signal wire outputs a 0-1volt signal just like a narrowband. so if you were running a standard ECU, this wire would hook up to the standard 02 sensor wire to the ECU the other is 0-5 volts which is more accurate and often hooked into data loggers and after market ECU's for tuning/logging.
what ECU do you run?
RED '90 TURBO.
SCARING PRIUS DRIVERS SINCE 2002
SCARING PRIUS DRIVERS SINCE 2002
-
- I count 5-s in my sleep
- Posts: 334
- Joined: Fri Jul 13, 2012 5:12 pm
The headlight wire is so it can dim/brighten depending on what you do with your lights (ie. The gauge cluster lights up when your headlights come on) I think.
You can run the sensor to the gauge so you can monitor your AFRs (which is still important no matter what ecu, I don't know what you'd be doing if you were running a supercharger on the stock ecu though)
You can also output the wideband to an aftermarket ECU for logging and tuning like SLYDIT mentioned (but it is not necessary in the case of just wanting the gauge readout)
For instance I have an older Link that doesn't have wideband input directly, but with the wideband sensor reading from the gauge I can still tune accordingly so I don't run too lean or too rich.
I'm not sure if a wideband can replace a narrowband with the stock ECU (I'm guessing it can't, but I'm sure someone could clear that up (from the above posts it looks like you can))
Edit: I don't claim to be an expert on this but I'm pretty sure that's the general idea. Edited to clarify my vague cellphone post.
You can run the sensor to the gauge so you can monitor your AFRs (which is still important no matter what ecu, I don't know what you'd be doing if you were running a supercharger on the stock ecu though)
You can also output the wideband to an aftermarket ECU for logging and tuning like SLYDIT mentioned (but it is not necessary in the case of just wanting the gauge readout)
For instance I have an older Link that doesn't have wideband input directly, but with the wideband sensor reading from the gauge I can still tune accordingly so I don't run too lean or too rich.
I'm not sure if a wideband can replace a narrowband with the stock ECU (I'm guessing it can't, but I'm sure someone could clear that up (from the above posts it looks like you can))
Edit: I don't claim to be an expert on this but I'm pretty sure that's the general idea. Edited to clarify my vague cellphone post.
-
- Why yes, actually I do run this site.
- Posts: 470
- Joined: Wed May 24, 2006 10:03 pm
- Location: I'm a JAFA and I'm OK
Heated oxygen sensor wiring
The value is in adjusting AFR to where it should be - that's pretty limited with a stock ECU altho you can do things like twiddle with the AFM tension, fuel pressure .
The wideband "narrowband" output should at least be more reliable reading-wise than a real narrowband, as NB relies heavily on temperature and voltage being in the expected range.
ie the "swing" point varies on the sensor's temp (which is why the heater and location is important
http://www.ngksparkplugs.ca/tech-info-o ... ensors.cfm
something like that anyway.
On 13 January 2014 15:43, warrior <electrical@mx5forum.co.nz (electrical@mx5forum.co.nz)> wrote:
The wideband "narrowband" output should at least be more reliable reading-wise than a real narrowband, as NB relies heavily on temperature and voltage being in the expected range.
ie the "swing" point varies on the sensor's temp (which is why the heater and location is important
http://www.ngksparkplugs.ca/tech-info-o ... ensors.cfm
something like that anyway.
On 13 January 2014 15:43, warrior <electrical@mx5forum.co.nz (electrical@mx5forum.co.nz)> wrote:
[Posted via external email]It is a gauge and controller, I am running a standard ECU.
So is this a waste of time using a wideband on a standard ECU?
------------------------
warrior
Who is online
Users browsing this forum: No registered users and 36 guests