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Joined: Dec 2003
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BSF
New Member
BSF
2003 Black Toyota Celica GT
New Member
2003 Toyota Celica GT

Joined: Dec 2003
Posts: 1
Alberta Canada
Jan 13, 9:58pm - #82215 
Air/Fuel Ratio Gauge

I know that the Air/Fuel Ratio Gauge has to be connected to the O2 sensor on the exhaust. Its under the passenger sitde seat under the carpet. I was wondering if anyone has connected one up? Did you connect the signal wire to the harness? If so where is the Harness? Any help would be great!

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Posts: 6,372
Speed4TheNeed
Caleb
Speed4TheNeed

Caleb
2000 Toyota Celica

Joined: Aug 2003
Posts: 6,372
New Orleans, LA
Jan 13, 11:52pm - #82216 
a universal install guide can be found here: http://www.grandamgt.com/airfuel.html

for a more celica specific compliment to this site, here's something i found while browsing the forums.
to quote mattgts2000:
"Volt gauge sounded fine, i did it differently, but what ever works ya know? and as far as the air/fuel ratio, you have to tap into a blue wire (on my 00 GTS it's blue) that runs under the carpet, on the passenger side of the car, below the fuse panel, it runs along the vertical part. if you have any other questions let me know!"

you can read the rest of what was said here: https://www.celicahobby.com/ubbthrea...true#Post162978

since he seems to know what he is talking about and if you need even more help...it might be a good idea to send mattgts2000 a pm thumbsup

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tru_Asiatik_Pride
Blue MnM
tru_Asiatik_Pride

Blue MnM
2003 Toyota Celica

Joined: Apr 2003
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Southern California
Jan 23, 3:41pm - #82217 
Originally Posted by BSF
I know that the Air/Fuel Ratio Gauge has to be connected to the O2 sensor on the exhaust. Its under the passenger sitde seat under the carpet. I was wondering if anyone has connected one up? Did you connect the signal wire to the harness? If so where is the Harness? Any help would be great!

iam wondering also anyone who has an a/f gauge detailed pics where you guys installed all the wires would be greatly appreciated thanks

Joined: Dec 2002
Posts: 307
c2gas
Member
c2gas

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2000 Toyota Celica

Joined: Dec 2002
Posts: 307
Hungary
Jan 23, 3:58pm - #82218 
you can locate the o2 sensor wich you need from the 2 on the passenger side under th carpet where the center consol meets the carpet. It snot under the seat is more where the passenger has the feet.
You will find 2 conectors with 4 cables. They have the same color as I remember 2 black 1 blue aand 1 white. locate wich is closer to the engin and you will have to use the cable wich is blue. that cable after the plug becomes black. thats the cable where you get the signal for a/f gauges.

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Posts: 392
saspence22
sappy
saspence22

sappy
2002 Toyota Celica GT

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Posts: 392
Missouri
Jan 23, 7:40pm - #82219 
Here ya go!!!!! PIc number 1...the blue wire. thumbsup

1869791502-AFG1.JPG

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saspence22
sappy
saspence22

sappy
2002 Toyota Celica GT

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Posts: 392
Missouri
Jan 23, 7:43pm - #82220 
And yeah...the gauge is more eye candy than anything due to the fact our cars have vvti... wave


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tru_Asiatik_Pride
Blue MnM
tru_Asiatik_Pride

Blue MnM
2003 Toyota Celica

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Southern California
Jan 23, 8:31pm - #82221 
Originally Posted by saspence22

Here ya go!!!!! PIc number 1...the blue wire. thumbsup

thanks for the pic still kinda confused ,so you connect it to the blue wire circled #1 or #2(in the picture top one or bottom one)whats the green wire?
btw can you use the a/f pigtail shown in here?? web page

1869791568-1869791502-AFG1.jpg
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Posts: 307
c2gas
Member
c2gas

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2000 Toyota Celica

Joined: Dec 2002
Posts: 307
Hungary
Jan 24, 2:42am - #82222 
Hey-hey thats on the pic is after the catalistaor!!! You have to use the front 1 cos the second 1 is cheeting!! You need to see the a/f before the cat!!

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Immo
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Immo

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2000 Toyota Celica GT

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Tilburg, The Netherlands
Jan 24, 5:25am - #82223 
You need the sensor after the cat according to Ricepowered.

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c2gas
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c2gas

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2000 Toyota Celica

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Posts: 307
Hungary
Jan 24, 6:22am - #82224 
Originally Posted by Immo
You need the sensor after the cat according to Ricepowered.


I don`t agree. I would surely use the 1st one cos that is the real sensor. The cat modyfies the gas so the sensor after the cat is not that good.

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saspence22
sappy
saspence22

sappy
2002 Toyota Celica GT

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Posts: 392
Missouri
Jan 24, 2:23pm - #82225 
Yeah...go with the blue wire in pic number 1!!!! I tried to to hook it up to the second one, and I couldnt get it to work! So, go with circle number 1, blue wire!!!!!!!!!!!! thumbsup thumbsup


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Rave669
Senior Member
Rave669

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2002 Toyota Celica

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Posts: 522
Lisle, IL
Jan 24, 2:48pm - #82226 
Actually, it looks as though that the pigtail may fit that clip just fine, it'd be a great way to keep the stock harness in tact, while still allowing you to run an A/F gauge. Good find thumbsup

lucky grand-am's use 4-wire o2 sensors as well!


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tru_Asiatik_Pride
Blue MnM
tru_Asiatik_Pride

Blue MnM
2003 Toyota Celica

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Southern California
Jan 24, 2:57pm - #82227 
Originally Posted by Rave669

Actually, it looks as though that the pigtail may fit that clip just fine, it'd be a great way to keep the stock harness in tact, while still allowing you to run an A/F gauge. Good find thumbsup

lucky grand-am's use 4-wire o2 sensors as well!

so its the blue wire in number 1 thumbsup
and rave so you think it would fit?? coz i rather do it that way its easier and a cleaner install how much do the pigtails normally cost, anyone?

1869792176-pn3010.jpg
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Rave669
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Rave669

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2002 Toyota Celica

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Lisle, IL
Jan 24, 3:08pm - #82228 
I'm pretty sure the pigtail will fit, you may need to use a ziptie on each plug to make sure they stay secure, but the harness clips look to be compatible. the signal wire is in the right place too.

4-wire clips tend to be pretty much universal, unless of course it's a ford or mopar, in which case it'll have something totally unique.

Luckily, toyota and GM have a lot of dealings with one another, pontiacs especially lately share a lot of things with toyotas, such as sensors, fasteners, seatbelts, etc. I'd say with about 90% certainty that the grand-am pigtail will fit the clips in the celica harness, you may have to trim or rempove the blue rubber boot from the pigtail, and secure the clips with zip ties, but it should work fine.

I have an A/F gauge, I'll order one of those pigtails sometime this month and check it out, it's inexpensive so it's worth a shot.

$15.99 from PFYC, you can order it here!

If anything, you can look for a pair of harness clips and make one yourself. go to the junkyard for the clips, and wire it up yourself


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tru_Asiatik_Pride
Blue MnM
tru_Asiatik_Pride

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2003 Toyota Celica

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Southern California
Jan 24, 3:22pm - #82229 
Originally Posted by Rave669
I'm pretty sure the pigtail will fit, you may need to use a ziptie on each plug to make sure they stay secure, but the harness clips look to be compatible. the signal wire is in the right place too.

4-wire clips tend to be pretty much universal, unless of course it's a ford or mopar, in which case it'll have something totally unique.

Luckily, toyota and GM have a lot of dealings with one another, pontiacs especially lately share a lot of things with toyotas, such as sensors, fasteners, seatbelts, etc. I'd say with about 90% certainty that the grand-am pigtail will fit the clips in the celica harness, you may have to trim or rempove the blue rubber boot from the pigtail, and secure the clips with zip ties, but it should work fine.

I have an A/F gauge, I'll order one of those pigtails sometime this month and check it out, it's inexpensive so it's worth a shot.

$15.99 from PFYC, you can order it here!

If anything, you can look for a pair of harness clips and make one yourself. go to the junkyard for the clips, and wire it up yourself

thanks i will give it a try a soon as i get my a/f gauge thumbsup

Joined: Jul 2003
Posts: 1,143
booyaolian
Specialist
booyaolian
2000 Black Toyota Celica GT
Specialist
2000 Toyota Celica GT

Joined: Jul 2003
Posts: 1,143
Austin, TX
Jan 24, 4:41pm - #82230 
Originally Posted by tru_Asiatik_Pride
Originally Posted by Rave669
I'm pretty sure the pigtail will fit, you may need to use a ziptie on each plug to make sure they stay secure, but the harness clips look to be compatible. the signal wire is in the right place too.

4-wire clips tend to be pretty much universal, unless of course it's a ford or mopar, in which case it'll have something totally unique.

Luckily, toyota and GM have a lot of dealings with one another, pontiacs especially lately share a lot of things with toyotas, such as sensors, fasteners, seatbelts, etc. I'd say with about 90% certainty that the grand-am pigtail will fit the clips in the celica harness, you may have to trim or rempove the blue rubber boot from the pigtail, and secure the clips with zip ties, but it should work fine.

I have an A/F gauge, I'll order one of those pigtails sometime this month and check it out, it's inexpensive so it's worth a shot.

$15.99 from PFYC, you can order it here!

If anything, you can look for a pair of harness clips and make one yourself. go to the junkyard for the clips, and wire it up yourself

thanks i will give it a try a soon as i get my a/f gauge thumbsup


what brand a/f are you getting?

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Posts: 1,917
tru_Asiatik_Pride
Blue MnM
tru_Asiatik_Pride

Blue MnM
2003 Toyota Celica

Joined: Apr 2003
Posts: 1,917
Southern California
Jan 24, 4:53pm - #82231 
Originally Posted by booyaolian


what brand a/f are you getting?

ac autotechnic to match my rev ind. kinda like vsgts'

1869792306-234-6.jpg
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tru_Asiatik_Pride
Blue MnM
tru_Asiatik_Pride

Blue MnM
2003 Toyota Celica

Joined: Apr 2003
Posts: 1,917
Southern California
Jan 27, 1:09pm - #82232 
Originally Posted by tru_Asiatik_Pride
Originally Posted by saspence22
Here ya go!!!!! PIc number 1...the blue wire. thumbsup

thanks for the pic still kinda confused ,so you connect it to the blue wire circled #1 or #2(in the picture top one or bottom one)whats the green wire?
btw can you use the a/f pigtail shown in here?? web page

does anyone know if our o2 connectors are square or rounded iam trying to find out if this pigtail would work on our cars
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