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Joined: Jun 2004
Posts: 3,748
hombredelassrtas
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hombredelassrtas

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2004 Toyota Celica

Joined: Jun 2004
Posts: 3,748
Gainesville, FL
Oct 30, 11:16am - #313863 
air /fuel install

Hey everyone, I looked in installes and didnt see it so i was wondering if anyone coudl tell me aobut installing a air/fuel gauge. is it somehting i coudl do myself or have a shop do?. also if anyone has pics of how i ahve to hook it to the engine or anyhting. Thanks everyone for all of oyur help.
-dan

Joined: Jun 2004
Posts: 3,748
hombredelassrtas
CF Connoisseur
hombredelassrtas

CF Connoisseur
2004 Toyota Celica

Joined: Jun 2004
Posts: 3,748
Gainesville, FL
Oct 30, 11:39am - #313864 
found a previous post that shows a tech drawing of install but does anyone have real pics. Alos i hear that a air,fuel will mess up the ecu on 03+ gt models?? odes anyone know about this. will it mess up my gts also??

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Posts: 744
Blue_Bomber
Senior Member
Blue_Bomber
2000 Spectra Blue Mica Toyota Celica
Senior Member
2000 Toyota Celica

Joined: Jan 2004
Posts: 744
Freehold, NJ
Oct 30, 11:41am - #313865 
A/F gauges are useless on our cars, unless they're the $400 wideband O2 sensor type.

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Posts: 522
Rave669
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Rave669

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2002 Toyota Celica

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Posts: 522
Lisle, IL
Oct 30, 4:19pm - #313866 
not true, blue. they are useful for diagnosing problems with the fuel system, it just basically takes the signal output of the o2 sensor and converts it into a bar graph. You can tell if you're leaning out, or running rich, and you can also tell if your o2 sensor is taking a dump on you, but if you want an actual number value for your A/F ratio for tuning purposes, then. yes, wideband tis the only way to go.

no gauge is useless.


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hombredelassrtas
CF Connoisseur
hombredelassrtas

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2004 Toyota Celica

Joined: Jun 2004
Posts: 3,748
Gainesville, FL
Oct 30, 8:40pm - #313867 
so anyone have pcis of an install of them. Someone said i can jsut tap into a wire that is in the car (not having ot go through firewall into engine) is this true,a nd if so which one?>?

Joined: Oct 2003
Posts: 1,320
qbanprepster21
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qbanprepster21
2003 Liquid Silver Toyota Celica GT
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2003 Toyota Celica GT

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Posts: 1,320
Virginia
Oct 30, 11:39pm - #313868 
I know what you mean, on the passenger side of the dash, going up along side the cetner console inside the footwell is a wire, i think its green or something, thats the cable you need to tap! I forgot exactly which one it is, let me see if i can find the right info for ya!!


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YBLEGAL
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YBLEGAL

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2000 Toyota Celica GT

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Posts: 114
Iowa
Nov 1, 12:59am - #313869 
hey I just got an a/f gauge too, someone please figure out which wire it is

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qbanprepster21
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qbanprepster21
2003 Liquid Silver Toyota Celica GT
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2003 Toyota Celica GT

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Virginia
Nov 1, 1:08am - #313870 
jsut got a pic from VooDooGTS, trying to get more info on it!

1953306156-DSC00346.sized.jpg

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hombredelassrtas
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hombredelassrtas

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2004 Toyota Celica

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Gainesville, FL
Nov 1, 2:24pm - #313871 
awsome, any mroe info woudl be welcomed.

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YBLEGAL
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YBLEGAL

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2000 Toyota Celica GT

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Iowa
Nov 1, 10:55pm - #313872 
whats the deal whith the old wire, do you just tap into the "new wire"

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qbanprepster21
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2003 Liquid Silver Toyota Celica GT
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2003 Toyota Celica GT

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Virginia
Nov 1, 11:40pm - #313873 
still waiting for the pm from voodoogts, i asked him the same question, whats the deal with the old wire, where that came from!!


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YBLEGAL
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2000 Toyota Celica GT

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Iowa
Nov 3, 8:45pm - #313874 
let me know when he PM you would ya

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qbanprepster21
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Virginia
Nov 3, 11:33pm - #313875 
alright, heres what i got, the old wire in the pic, is the wire they used to use for installing the air/fuel gauge, but voodoo said that using the new wire is more accurate, so its best to install the air/fuel gauge wire to that one, the new one!! thats the one that he said to tap into. If installed correctly, clean the maf, reset the ecu, there should be no probelms with the idling, that some people have, but then again, i dont think that everyone will have a prob with the idiling, ive heard about a lot of propblems putting air/fuel gagues into the 03+ models, but, if you think about something, how many people have SRI's or CAI's, and get cels, and always complaining about cel's, yet, ive never had one, so its a miss and go situation, but thats how you install it!!


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XPunkJoeX
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2000 Toyota Celica

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Baldwin Park, CA
Jan 16, 10:10pm - #313876 
Originally Posted by Rave669
not true, blue. they are useful for diagnosing problems with the fuel system, it just basically takes the signal output of the o2 sensor and converts it into a bar graph. You can tell if you're leaning out, or running rich, and you can also tell if your o2 sensor is taking a dump on you, but if you want an actual number value for your A/F ratio for tuning purposes, then. yes, wideband tis the only way to go.

no gauge is useless.


How can you tell on the gauge if if your 02 sensor is bad or not or going bad.


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silver
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silver
2000 Silver Toyota Celica GT
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2000 Toyota Celica GT

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Posts: 1,251
California
Jan 17, 9:55pm - #313877 
Originally Posted by Rave669
not true, blue. they are useful for diagnosing problems with the fuel system, it just basically takes the signal output of the o2 sensor and converts it into a bar graph. You can tell if you're leaning out, or running rich, and you can also tell if your o2 sensor is taking a dump on you, but if you want an actual number value for your A/F ratio for tuning purposes, then. yes, wideband tis the only way to go.

no gauge is useless.


Running a crappy AFR gauge off of the crappy OEM narrowband O2 sensor will give you nothing more than an expensive light show.

The stock water temperature gauge is useless.

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DJ_Curtiz
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DJ_Curtiz
2001 Liquid Silver Toyota Celica GT
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2001 Toyota Celica GT

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Orange County, CA
Jan 18, 12:44pm - #313878 
/\/\ so true, that thing jumps around non stop, I dissconected mine, it got annoying and distracting rolleyes


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sickcelica696
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sickcelica696
2000 Liquid Silver Toyota Celica
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2000 Toyota Celica

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Annapolis, MD
Jan 18, 2:40pm - #313879 
Originally Posted by DJ_Curtiz
/\/\ so true, that thing jumps around non stop, I dissconected mine, it got annoying and distracting rolleyes


it jumps because thats what your engine is constantly doing. Your ecu adjusts the a/f ratio thousands of times per minute, this means your gauge is working it it jumps all the time. If you add fuel in,i.e. press gas pedal it will go rich, take foot off the pedal and it goes lean. If crusing on cruise control it will stay stoich. at idle it varys through all three settings.

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XPunkJoeX
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2000 Toyota Celica

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Baldwin Park, CA
Jan 18, 4:47pm - #313880 
on mine though when I press the gas nothing shows up on the gauge blank??? it only reads when I am on cruise control or holding the gas pedal steady


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