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Joined: Apr 2003
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Gen7fan
ThE iRoN mAiDeN
Gen7fan Mar 3, 8:14pm - #116540 
2003 silver streak Toyota Celica GT
ThE iRoN mAiDeN
2003 Toyota Celica GT

Joined: Apr 2003
Posts: 1,899
Maryland
Air/fuel ratio gauge problems!?!

I hooked up my AC Autotechnic Air/Fuel and Volt gauges and now I got problems that I think are related to the Air/Fuel gauge. Now have a CEL and when I first start the car it sounds like it wants to stall. I rest the ECU but this only fixed the problem for a day, the CEL is back on and she sounds like she wants to stall out on start up.

What did I do wrong???!!! Really need help here guys!
1869858062-1869791502-AFG1 copy.jpg
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trog2233
ECelica Staff
trog2233 Mar 3, 8:17pm - #116541 

ECelica Staff
2004 GMC Canyon Z-71

Joined: Jul 2003
Posts: 2,043
Williamsport, PA
i think thats what i have mine tapped into...i dont' remember... i dont' see how that could set off a CEL though confused
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Gen7fan
ThE iRoN mAiDeN
Gen7fan Mar 3, 8:47pm - #116542 
2003 silver streak Toyota Celica GT
ThE iRoN mAiDeN
2003 Toyota Celica GT

Joined: Apr 2003
Posts: 1,899
Maryland
LMK trog, TTT
Joined: Apr 2003
Posts: 1,899
Gen7fan
ThE iRoN mAiDeN
Gen7fan Mar 3, 9:02pm - #116543 
2003 silver streak Toyota Celica GT
ThE iRoN mAiDeN
2003 Toyota Celica GT

Joined: Apr 2003
Posts: 1,899
Maryland
TTT, I can bump this thing all night!!
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Jamey
Sara Sucks :P
Jamey Mar 3, 9:08pm - #116544 

Sara Sucks :P

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Pittsburgh, PA
Sorry bro i don't know what is up. Can't help you out except for a free bump!!!!
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tru_Asiatik_Pride
Blue MnM
tru_Asiatik_Pride Mar 3, 9:20pm - #116545 

Blue MnM
2003 Toyota Celica

Joined: Apr 2003
Posts: 1,917
Southern California
i have the same gauges(a/f & volt) connected the same way and HAVE THE SAME FREAKIN PROBLEM(except mine has no cel) angry i have asked here b4 and no one knows. does it only happend on start up and idle drops to about 700-500 rpm and it feels and sounds like its gonna die but doesnt?
i have a CAI i can hear it trying to suck in air. the car drives fine after a couple of minutes and warming it up does not help ethier i can be driving for an hour turn the car of for 5 min and turn it back on again and it still does it. i have no idea whats wrong. i want to take it to the dealer but i know there just gonna blame it on my mods confused confused i dunno like what i said b4 i hope its not major.

btw since you have a cel on maybe you can go to autozone and get the code if you can and let me know coz its really bothering me. oh yeah i have an 03 what yours???
Joined: Apr 2003
Posts: 1,899
Gen7fan
ThE iRoN mAiDeN
Gen7fan Mar 3, 9:26pm - #116546 
2003 silver streak Toyota Celica GT
ThE iRoN mAiDeN
2003 Toyota Celica GT

Joined: Apr 2003
Posts: 1,899
Maryland
Originally Posted by tru_Asiatik_Pride
i have the same gauges(a/f & volt) connected the same way and HAVE THE SAME FREAKIN PROBLEM(except mine has no cel) angry i have asked here b4 and no one knows. does it only happend on start up and idle drops to about 700-500 rpm and it feels and sounds like its gonna die but doesnt?
i have a CAI i can hear it trying to suck in air. the car drives fine after a couple of minutes and warming it up does not help ethier i can be driving for an hour turn the car of for 5 min and turn it back on again and it still does it. i have no idea whats wrong. i want to take it to the dealer but i know there just gonna blame it on my mods confused confused i dunno like what i said b4 i hope its not major.

btw since you have a cel on maybe you can go to autozone and get the code if you can and let me know coz its really bothering me. oh yeah i have an 03 what yours???



Word for word that is the problem I have, well plus I have the CEL. I think I'm going unhook it to see if the problem stops. If it does go away then I may not hook it back up, it may have to just be eye candy.

Or I might have Craftsman look at it and tell me the code is the O2 sensor, and still have to unhook it and let it just be eye candy.

I thought maybe I tapped the wrong wire or something, but it seems like I did everything right but now the ECU is pissed.

BTW, I drive a 03 GT 5speed.
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tru_Asiatik_Pride
Blue MnM
tru_Asiatik_Pride Mar 3, 9:31pm - #116547 

Blue MnM
2003 Toyota Celica

Joined: Apr 2003
Posts: 1,917
Southern California
Originally Posted by Gen7fan

Originally Posted by tru_Asiatik_Pride

i have the same gauges(a/f & volt) connected the same way and HAVE THE SAME FREAKIN PROBLEM(except mine has no cel) angry i have asked here b4 and no one knows. does it only happend on start up and idle drops to about 700-500 rpm and it feels and sounds like its gonna die but doesnt?
i have a CAI i can hear it trying to suck in air. the car drives fine after a couple of minutes and warming it up does not help ethier i can be driving for an hour turn the car of for 5 min and turn it back on again and it still does it. i have no idea whats wrong. i want to take it to the dealer but i know there just gonna blame it on my mods confused confused i dunno like what i said b4 i hope its not major.

btw since you have a cel on maybe you can go to autozone and get the code if you can and let me know coz its really bothering me. oh yeah i have an 03 what yours???



Word for word that is the problem I have, well plus I have the CEL. I think I'm going unhook it to see if the problem stops. If it does go away then I may not hook it back up, it may have to just be eye candy.

Or I might have Craftsman look at it and tell me the code is the O2 sensor, and still have to unhook it and let it just be eye candy.

I thought maybe I tapped the wrong wire or something, but it seems like I did everything right but now the ECU is pissed.

BTW, I drive a 03 GT 5speed.

dont think its the wrong wire since thats the o2 wire. let me know the outcome when you unhook it coz mine is soldered together and i dont want to go to the hassle to soldering it in and out. getting the code would also be a big help. so let me know waht the outcome thanks thumbsup

oh yeah as far as reseting and removing the battery i already did it twice and the problem still persists
Joined: May 2003
Posts: 5,346
spaztikid
dikitzaps
spaztikid Mar 3, 9:34pm - #116548 
dikitzaps
1974 Toyota Celica

Joined: May 2003
Posts: 5,346
LA
go to autozone and get the code pulled... then someone will tell you whats wrong... it'll probably be an easy fix.
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Gen7fan
ThE iRoN mAiDeN
Gen7fan Mar 3, 9:37pm - #116549 
2003 silver streak Toyota Celica GT
ThE iRoN mAiDeN
2003 Toyota Celica GT

Joined: Apr 2003
Posts: 1,899
Maryland
[/quote]
dont think its the wrong wire since thats the o2 wire. let me know the outcome when you unhook it coz mine is soldered together and i dont want to go to the hassle to soldering it in and out. getting the code would also be a big help. so let me know waht the outcome thanks thumbsup [/quote]


Good the know you sooldered yours, I used butt conectors and I thought that may be why I'm having problems. Like it was not geting a clean signal to the ECU.

I don't think I'm going to put it in the shop to tell me what we already know (sucks), I'm going to un hook it. I'll PM you with the results.

Thanks for the help! thumbsup
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Posts: 1,917
tru_Asiatik_Pride
Blue MnM
tru_Asiatik_Pride Mar 3, 9:38pm - #116550 

Blue MnM
2003 Toyota Celica

Joined: Apr 2003
Posts: 1,917
Southern California
Originally Posted by Gen7fan
[/quote]
dont think its the wrong wire since thats the o2 wire. let me know the outcome when you unhook it coz mine is soldered together and i dont want to go to the hassle to soldering it in and out. getting the code would also be a big help. so let me know waht the outcome thanks thumbsup



Good the know you sooldered yours, I used butt conectors and I thought that may be why I'm having problems. Like it was not geting a clean signal to the ECU.

I don't think I'm going to put it in the shop to tell me what we already know (sucks), I'm going to un hook it. I'll PM you with the results.

Thanks for the help! thumbsup [/quote]
great wave
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Gen7fan
ThE iRoN mAiDeN
Gen7fan Mar 3, 9:39pm - #116551 
2003 silver streak Toyota Celica GT
ThE iRoN mAiDeN
2003 Toyota Celica GT

Joined: Apr 2003
Posts: 1,899
Maryland
Originally Posted by spaztikid
go to autozone and get the code pulled... then someone will tell you whats wrong... it'll probably be an easy fix.



I know there going to tell me it an O2 sensor, I'm going to unhook it. If the the CEL goes out then we will know I was right. If not its going to Craftsman to get checked out.
Joined: May 2002
Posts: 3,295
Steven
ECelica Staff
Steven Mar 3, 11:21pm - #116552 
2001 Spectra Blue Mica Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS

Joined: May 2002
Posts: 3,295
Riverside, CA
I'm no expert but maybe the ECU thinks it's 2nd O2 sensor isn't working properly since you're draining juice from that blue wire. I'm probably way off...
Joined: Oct 2003
Posts: 148
daekyu1974
Member
daekyu1974 Mar 3, 11:52pm - #116553 

Member
2003 Toyota Celica

Joined: Oct 2003
Posts: 148
Washington, USA
Originally Posted by Gen7fan
I hooked up my AC Autotechnic Air/Fuel and Volt gauges and now I got problems that I think are related to the Air/Fuel gauge. Now have a CEL and when I first start the car it sounds like it wants to stall. I rest the ECU but this only fixed the problem for a day, the CEL is back on and she sounds like she wants to stall out on start up.

What did I do wrong???!!! Really need help here guys!


I had same problem as yours. Also 03 GTS. I think from 03 and on it's liitle different. I would recommend disconnecting the wire that you tap into for the meter. I did and it's running perfectly. I took it to the dealer and all they gonna tell you is that it's misfiring. CEL code that is. I've replaced spark plugs and fuel injectors but problem is still same. Recommend disconnect and forget about air/fuel meter. I would return it to whom you bought and get something else like water temp or oil pressure/temp. Hope this will help. It seems like people with 03 have the same problem with air/fuel meter.
Joined: Apr 2003
Posts: 1,917
tru_Asiatik_Pride
Blue MnM
tru_Asiatik_Pride Mar 4, 12:51am - #116554 

Blue MnM
2003 Toyota Celica

Joined: Apr 2003
Posts: 1,917
Southern California
Originally Posted by daekyu1974

Originally Posted by Gen7fan

I hooked up my AC Autotechnic Air/Fuel and Volt gauges and now I got problems that I think are related to the Air/Fuel gauge. Now have a CEL and when I first start the car it sounds like it wants to stall. I rest the ECU but this only fixed the problem for a day, the CEL is back on and she sounds like she wants to stall out on start up.

What did I do wrong???!!! Really need help here guys!


I had same problem as yours. Also 03 GTS. I think from 03 and on it's liitle different. I would recommend disconnecting the wire that you tap into for the meter. I did and it's running perfectly. I took it to the dealer and all they gonna tell you is that it's misfiring. CEL code that is. I've replaced spark plugs and fuel injectors but problem is still same. Recommend disconnect and forget about air/fuel meter. I would return it to whom you bought and get something else like water temp or oil pressure/temp. Hope this will help. It seems like people with 03 have the same problem with air/fuel meter.

so if the problem "IS" the (a/f)/O2 wiring does this do any major damage to the car if i do decide to leave it connected??? anyone know how this affects the engine??? for those who know a lot about cars why do you think tapping to the O2 sensor is causing this problem(if it is the problem)? i just find it wiered coz no wire where cut during installation
Joined: May 2003
Posts: 522
Rave669
Senior Member
Rave669 Mar 4, 1:44am - #116555 

Senior Member
2002 Toyota Celica

Joined: May 2003
Posts: 522
Lisle, IL
Here's an easy way to both fix your problem and get more accurate readings.

1) buy a new, single wire 02 sensor, preferably a wideband one.

2) take your car to the local exhaust shop, ask them to drill your downpipe, just before or after the before-cat o2 sensor, and weld on a bung for the new o2 sensor. have them then thread a bolt, or your new sensor, into the bung.

3) take the car back to your garage and hook the sensor wire of your gauge up to the wire on the new O2 sensor. If they put a bolt in the new fitting for the ride home, remove the bolt, apply some anit-sieze to the threads on the sensor, and install the sensor into the exhaust pipe.

Now, you have a highly accurate a/f gauge setup that does not interfere with the factory emissions control system, it acts on it's own circuit (the gauge itself).

You could always put a switch on the signal wire, so you can disable the gauge when you don't want it messing with your ECU. just turn the switch on or off before starting the car thumbsup

You usually only use the gauge when tuning anyways...

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Johnny178
Member
Johnny178 Mar 4, 1:47am - #116556 

Member
2003 Toyota Celica GT

Joined: Sep 2003
Posts: 314
Charlotte, NC
Originally Posted by tru_Asiatik_Pride
Originally Posted by daekyu1974
Originally Posted by Gen7fan
I hooked up my AC Autotechnic Air/Fuel and Volt gauges and now I got problems that I think are related to the Air/Fuel gauge. Now have a CEL and when I first start the car it sounds like it wants to stall. I rest the ECU but this only fixed the problem for a day, the CEL is back on and she sounds like she wants to stall out on start up.

What did I do wrong???!!! Really need help here guys!


I had same problem as yours. Also 03 GTS. I think from 03 and on it's liitle different. I would recommend disconnecting the wire that you tap into for the meter. I did and it's running perfectly. I took it to the dealer and all they gonna tell you is that it's misfiring. CEL code that is. I've replaced spark plugs and fuel injectors but problem is still same. Recommend disconnect and forget about air/fuel meter. I would return it to whom you bought and get something else like water temp or oil pressure/temp. Hope this will help. It seems like people with 03 have the same problem with air/fuel meter.

so if the problem "IS" the (a/f)/O2 wiring does this do any major damage to the car if i do decide to leave it connected??? anyone know how this affects the engine??? for those who know a lot about cars why do you think tapping to the O2 sensor is causing this problem(if it is the problem)? i just find it wiered coz no wire where cut during installation


If you leave it as is with the CEL, you wouldnt be able to tell when soething was REALLY wrong. Its a worthless gauge IMO, get something else.
Joined: Apr 2003
Posts: 1,917
tru_Asiatik_Pride
Blue MnM
tru_Asiatik_Pride Mar 4, 1:51am - #116557 

Blue MnM
2003 Toyota Celica

Joined: Apr 2003
Posts: 1,917
Southern California
Originally Posted by Johnny178
Originally Posted by tru_Asiatik_Pride
Originally Posted by daekyu1974
Originally Posted by Gen7fan
I hooked up my AC Autotechnic Air/Fuel and Volt gauges and now I got problems that I think are related to the Air/Fuel gauge. Now have a CEL and when I first start the car it sounds like it wants to stall. I rest the ECU but this only fixed the problem for a day, the CEL is back on and she sounds like she wants to stall out on start up.

What did I do wrong???!!! Really need help here guys!


I had same problem as yours. Also 03 GTS. I think from 03 and on it's liitle different. I would recommend disconnecting the wire that you tap into for the meter. I did and it's running perfectly. I took it to the dealer and all they gonna tell you is that it's misfiring. CEL code that is. I've replaced spark plugs and fuel injectors but problem is still same. Recommend disconnect and forget about air/fuel meter. I would return it to whom you bought and get something else like water temp or oil pressure/temp. Hope this will help. It seems like people with 03 have the same problem with air/fuel meter.

so if the problem "IS" the (a/f)/O2 wiring does this do any major damage to the car if i do decide to leave it connected??? anyone know how this affects the engine??? for those who know a lot about cars why do you think tapping to the O2 sensor is causing this problem(if it is the problem)? i just find it wiered coz no wire where cut during installation


If you leave it as is with the CEL, you wouldnt be able to tell when soething was REALLY wrong. Its a worthless gauge IMO, get something else.

my CEL is not on though????it never came on even on the day i got my gauges installed confused
Joined: Sep 2003
Posts: 3,077
slidr
Specialist
slidr Mar 4, 2:00am - #116558 

Specialist
2000 Toyota Celica

Joined: Sep 2003
Posts: 3,077
Saint Louis, MO
Sounds like the gauge is interfering with the electrical feed to the MAF sensor.

Aqua Teen Hunger Force...number one in the hood, G
Joined: Jan 2004
Posts: 1,248
Rocketman
Specialist
Rocketman Mar 4, 3:27am - #116559 

Specialist
01 Toyota Celica

Joined: Jan 2004
Posts: 1,248
Idaho Falls, ID
Get a grounding kit...might help some. YAY! spineyes
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