Previous Thread
Next Thread
New Reply
Print Thread
Rate Thread

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
Okay I removed the catalytic converter a day ago.Everything went fine until the next day, the Engine Light Warning came up angry . My friend said it's the Oxygen Sensor that comes before or after the catalytic converter, it's trying to say that their something wrong with catalytic converter.So anyways
my question is:Can I remove the O2 Sensor?
If yes how?
Will my engine get messed up or die?
Is the O2 Sensor before or after the catalytic converter?
Please I need help? Instructions or pics well be really appreciated. Once again Thanks for everything!!


Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: Jun 2003
Posts: 112
Member
2000 Toyota Celica GT
Member
2000 Toyota Celica GT
Joined: Jun 2003
Posts: 112
the o2 sensor is before the catalytic converter. it's there to measure the amount of unused oxygen in the exhaust to keep the air/fuel mixture as close to maximim efficiency as possible. definitely keep the o2 sensor in your car. if you dont, your ECU wont know how much fuel to add to the air going into the engine. the o2 sensor is before the catalytic converter because it needs to know how much oxygen is left unused in the exhaust. when the exhaust goes through the catalytic converter, some of the unused oxygen is used to complete some of the reactions not finished by the combustion in the engine, thereby eliminating most of the harmful toxins released into the engine by incomplete combustion. the o2 sensor keeps the air/fuel mixture as close to the stoichiometric point as possible while still leaving some o2 for the catalytic converter to do its job.

Joined: Dec 2002
Posts: 1,660
ECelica Staff
2001 Toyota Celica
ECelica Staff
2001 Toyota Celica
Joined: Dec 2002
Posts: 1,660
There is an O2 sensor after the cat as well.

Joined: Jun 2003
Posts: 35
Member
Member
Joined: Jun 2003
Posts: 35
whoa milo, you sound like a chemical engineer or a chemist with using the word stoichiometric tongue

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
Okay I see now then, so should I keep them both. Man there must be a way to make that Engine Light go away!!! angry frown
Still need help? Good Info though guys Thanks! thumbsup


Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: Feb 2003
Posts: 264
Member
2000 Toyota Celica
Member
2000 Toyota Celica
Joined: Feb 2003
Posts: 264
you can make the light go away by placing a small piece of electrical tape over it... grin..j/k


2000 GT-S
6spd
AEM CAI
Tanabe SRM exhaust
ACT STREET MOD CLUTCH
UR FLYWHEEL
TRD SPRINGS
TANABE FR TOWER BRACE
OBX SHORT SHIFTER
ENERGY SUSPENSION MOTOR MOUNTS
CF HOOD
SUPER STOCK STEREO SYSTEM WITH BUDS TK421 MODIFICATION

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
Not a bad idea, would look hilarious.I'll do this If I have no choice.!LOL! Nah nevermind I really need to fix this, cause what if I really have a real problem somewhere else in the car.
And I just ignore and then the engine gets messed up!! angry
Well hope someone with great car knowledge would help fix it!!


Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: Mar 2003
Posts: 71
Member
Member
Joined: Mar 2003
Posts: 71
Same thing happened to my car with the O2 sensor. I took it to the dealership to find out why my CEL was on and they told me what it was. It ended up costing me almost $300 with parts and install. thumbsdown That could have been another mod!!!


[color:"red"]TRD exhaust/AEM pulley kit/Injen short ram/"happies" grounding kit/raised hood scoop/MTEC lighting package/APC Euros/fill in decals/window tint/s2000 antenna/red footwell neons...more to come[/color]

Joined: May 2002
Posts: 5,979
Likes: 9
ECelica Admin
2001 Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT
Joined: May 2002
Posts: 5,979
Likes: 9
Originally Posted by clockwork
you can make the light go away by placing a small piece of electrical tape over it... grin..j/k

believe it or not... a lot of people have done this thumbsup

ALOT!


[Linked Image]
It's not just your imagination...
Your day really does go by twice as fast while on EverythingCelica.com

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
Originally Posted by punterjoe21
Same thing happened to my car with the O2 sensor. I took it to the dealership to find out why my CEL was on and they told me what it was. It ended up costing me almost $300 with parts and install. thumbsdown That could have been another mod!!!

Can you tell me what they did to your car?And what they installed for $300 dollars!!!!! angry


Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
Originally Posted by isaac
Originally Posted by clockwork
you can make the light go away by placing a small piece of electrical tape over it... grin..j/k

believe it or not... a lot of people have done this thumbsup

ALOT!

Seriously Isaac is their a way to fix that besides putting tape over and just ignoring.

Last edited by Rone0seveN; Jun 27, 2003 10:36pm.

Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: Mar 2003
Posts: 71
Member
Member
Joined: Mar 2003
Posts: 71
My car isnt under warrenty anymore so i had to pay them like $62.99 for a "look" on day 1. At the same time i ordered the O2 sensor. Day 2 i got the part installed and it was ~$139.99 and another $62.99 for labor. So with tax it was about $280. I just rounded up to 300. You could reset your computer and see if you just triggered the CEL. If the CEL doesnt come back on then you wont have to dish out 300 smackers. I tried that but it came back on so i cursed at my car the whole way to the dealership.


[color:"red"]TRD exhaust/AEM pulley kit/Injen short ram/"happies" grounding kit/raised hood scoop/MTEC lighting package/APC Euros/fill in decals/window tint/s2000 antenna/red footwell neons...more to come[/color]

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
Originally Posted by Rone0seveN
Not a bad idea, would look hilarious.I'll do this If I have no choice.!LOL! Nah nevermind I really need to fix this, cause what if I really have a real problem somewhere else in the car.
And I just ignore and then the engine gets messed up!! angry
Well hope someone with great car knowledge would help fix it!!

I hope you have read this Isaac! frown


Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: May 2002
Posts: 5,979
Likes: 9
ECelica Admin
2001 Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT
Joined: May 2002
Posts: 5,979
Likes: 9
I'm not sure - I've haven't ever encountered that problem before... you might want to just go to your dealership and explain the problem to the master-tech and see if there is someway he can just "fix" the problem, rather then replace the whole thing.

from past experiences, dealerships are recommended to replace the faulty parts so that they can send them back to R&D for diagnosis of why the part failed. but if you explain exactly what you were doing at the time the part stopped working and the master tech understands, they can most likely just fix the problem using professional creativity.

the gauge cluster in my celica needed to be replaced because i shorted out a few of the sensors in it... the master tech at the dealership I went to, demonstrated how to bypass the problem by jumping a few lines together... i took some photos of his examples and then went home and fixed the problems myself with less than $0.35 of materials... instead of doing the dealership recommended $450 gauge cluster replacement.

...

just ask the master-tech at your fav dealership for some advice thumbsup


[Linked Image]
It's not just your imagination...
Your day really does go by twice as fast while on EverythingCelica.com

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
Originally Posted by punterjoe21
My car isnt under warrenty anymore so i had to pay them like $62.99 for a "look" on day 1. At the same time i ordered the O2 sensor. Day 2 i got the part installed and it was ~$139.99 and another $62.99 for labor. So with tax it was about $280. I just rounded up to 300. You could reset your computer and see if you just triggered the CEL. If the CEL doesnt come back on then you wont have to dish out 300 smackers. I tried that but it came back on so i cursed at my car the whole way to the dealership.

O I C Thanks man, Okay i'll try to reset it, But How do you do it????????? confused


Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: Mar 2003
Posts: 71
Member
Member
Joined: Mar 2003
Posts: 71
All you do is disconnect the negative battery cable for about 5 min then put it back on. The alarm should make you jump a little so just turn it off with your button. The CEL will be off for sure for a little while but drive it around for awhile to see if it will come back on. If it does then you might have to replace it or rapair it.


[color:"red"]TRD exhaust/AEM pulley kit/Injen short ram/"happies" grounding kit/raised hood scoop/MTEC lighting package/APC Euros/fill in decals/window tint/s2000 antenna/red footwell neons...more to come[/color]

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
Woe! Kool I'll try that Isaac after I reset the comp Thanks as always you guys are great!! grin grin

Last edited by Rone0seveN; Jun 27, 2003 10:47pm.

Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: Dec 2002
Posts: 1,660
ECelica Staff
2001 Toyota Celica
ECelica Staff
2001 Toyota Celica
Joined: Dec 2002
Posts: 1,660
Hold up. You have no cat. Therefore the O2 sensor after the cat is not reading what it needs to read. The CEL will come on after you drive it for a bit and the enigine gets warmed up.

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
I know it comes on but I want the Engine Light off!
So then should I do what Isaac told me to do? confused

Last edited by Rone0seveN; Jun 28, 2003 2:28am.

Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: Dec 2002
Posts: 1,660
ECelica Staff
2001 Toyota Celica
ECelica Staff
2001 Toyota Celica
Joined: Dec 2002
Posts: 1,660
Originally Posted by Rone0seveN
I know it comes on but I want the Engine Light off!
So then should I do what Isaac told me to do? confused

About asking the tech for some advice? Yea, you could try that. I remember a while ago about some talk about how to fix this problem. I have no idea where it was or what it was called, but I am pretty sure you can get this solved. First ask your tech and go from there. Share with us what the tech told you. thumbsup

Joined: Jan 2003
Posts: 2,154
ECelica Staff
2002 Toyota Celica GT
ECelica Staff
2002 Toyota Celica GT
Joined: Jan 2003
Posts: 2,154
the O2 sensor is after the cat converter thumbsup


[Linked Image]

Joined: Dec 2002
Posts: 1,660
ECelica Staff
2001 Toyota Celica
ECelica Staff
2001 Toyota Celica
Joined: Dec 2002
Posts: 1,660
ok ok, lets clear this up. There are 2 O2 sensors. One before and one after. It just seems from most replies that people think there is just one.

Joined: May 2002
Posts: 5,979
Likes: 9
ECelica Admin
2001 Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT
Joined: May 2002
Posts: 5,979
Likes: 9
Originally Posted by Grand-Touring-Dan
ok ok, lets clear this up. There are 2 O2 sensors. One before and one after. It just seems from most replies that people think there is just one.

and this might be the reason why they call it the "Oh, Two sensors" eek


[Linked Image]
It's not just your imagination...
Your day really does go by twice as fast while on EverythingCelica.com

Joined: Mar 2003
Posts: 71
Member
Member
Joined: Mar 2003
Posts: 71
thumbsup


[color:"red"]TRD exhaust/AEM pulley kit/Injen short ram/"happies" grounding kit/raised hood scoop/MTEC lighting package/APC Euros/fill in decals/window tint/s2000 antenna/red footwell neons...more to come[/color]

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
Okay I reseted the comp by doing the battery thingy!!LOL
Anyways light is gone for now, lets see in a week if it comes back! Thanks for the help guys! thumbsup


Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: Mar 2003
Posts: 71
Member
Member
Joined: Mar 2003
Posts: 71
When i reset my comp before i had it replaced it came back on within 20 miles...aka...same day.


[color:"red"]TRD exhaust/AEM pulley kit/Injen short ram/"happies" grounding kit/raised hood scoop/MTEC lighting package/APC Euros/fill in decals/window tint/s2000 antenna/red footwell neons...more to come[/color]

Joined: Apr 2003
Posts: 2,424
King of the Hill
2003 Toyota Celica GT
King of the Hill
2003 Toyota Celica GT
Joined: Apr 2003
Posts: 2,424
Originally Posted by isaac
Originally Posted by Grand-Touring-Dan
ok ok, lets clear this up. There are 2 O2 sensors. One before and one after. It just seems from most replies that people think there is just one.

and this might be the reason why they call it the "Oh, Two sensors" eek

rofl

Joined: Dec 2002
Posts: 1,660
ECelica Staff
2001 Toyota Celica
ECelica Staff
2001 Toyota Celica
Joined: Dec 2002
Posts: 1,660
if it was the O2 sensor before the cat, the light will go off very soon. Since its the sensor after the cat, it will take a few miles, once its warmed up, it will go off.

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
O I C...Ever since I took the CC out I can smell more gas or exhuast fumes!!!! I hope this is what happens when you take the CC out? confused But the car feels free I have good flow through the car now!!! grin thumbsup


Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: Dec 2002
Posts: 1,660
ECelica Staff
2001 Toyota Celica
ECelica Staff
2001 Toyota Celica
Joined: Dec 2002
Posts: 1,660
Originally Posted by Rone0seveN
O I C...Ever since I took the CC out I can smell more gas or exhuast fumes!!!! I hope this is what happens when you take the CC out? confused But the car feels free I have good flow through the car now!!! grin thumbsup

That is what will happen. That is the point of a cat, reduces emissions. That is what you are smelling.

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
Darn the light came up again damn now I have to take it to the techs!!!! angry


Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: Jan 2003
Posts: 2,154
ECelica Staff
2002 Toyota Celica GT
ECelica Staff
2002 Toyota Celica GT
Joined: Jan 2003
Posts: 2,154
Originally Posted by isaac
Originally Posted by Grand-Touring-Dan
ok ok, lets clear this up. There are 2 O2 sensors. One before and one after. It just seems from most replies that people think there is just one.

and this might be the reason why they call it the "Oh, Two sensors" eek

LMAO! rofl
[Linked Image from smilies.org]


[Linked Image]

Joined: May 2002
Posts: 5,979
Likes: 9
ECelica Admin
2001 Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT
Joined: May 2002
Posts: 5,979
Likes: 9
also remember that without your CAT installed, by talking to the techs, i believe that they are required by law to report you.

I had no clue that you didnt have a cat when I wrote my sugestions above wtf


[Linked Image]
It's not just your imagination...
Your day really does go by twice as fast while on EverythingCelica.com

Joined: Apr 2003
Posts: 181
Member
Member
Joined: Apr 2003
Posts: 181
Originally Posted by isaac
I'm not sure - I've haven't ever encountered that problem before... you might want to just go to your dealership and explain the problem to the master-tech and see if there is someway he can just "fix" the problem, rather then replace the whole thing.

from past experiences, dealerships are recommended to replace the faulty parts so that they can send them back to R&D for diagnosis of why the part failed. but if you explain exactly what you were doing at the time the part stopped working and the master tech understands, they can most likely just fix the problem using professional creativity.

the gauge cluster in my celica needed to be replaced because i shorted out a few of the sensors in it... the master tech at the dealership I went to, demonstrated how to bypass the problem by jumping a few lines together... i took some photos of his examples and then went home and fixed the problems myself with less than $0.35 of materials... instead of doing the dealership recommended $450 gauge cluster replacement.

...

just ask the master-tech at your fav dealership for some advice thumbsup

I thought you say said to go ask the tech guys at my dealership???????
O and what is a gauge cluster replacement?









Stock is the BEST!! J/K
http://www.realultimatepower.net/
Click to get a good Laugh^^

Joined: May 2002
Posts: 5,979
Likes: 9
ECelica Admin
2001 Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT
Joined: May 2002
Posts: 5,979
Likes: 9
Originally Posted by isaac
I had no clue that you didnt have a cat when I wrote my sugestions above wtf

rolleyes rolleyes rolleyes rolleyes rolleyes rolleyes rolleyes rolleyes


[Linked Image]
It's not just your imagination...
Your day really does go by twice as fast while on EverythingCelica.com

Joined: May 2002
Posts: 5,979
Likes: 9
ECelica Admin
2001 Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT
Joined: May 2002
Posts: 5,979
Likes: 9
Gauge cluster...
77305-gaugecluster.jpg


[Linked Image]
It's not just your imagination...
Your day really does go by twice as fast while on EverythingCelica.com

Joined: May 2002
Posts: 5,979
Likes: 9
ECelica Admin
2001 Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT
Joined: May 2002
Posts: 5,979
Likes: 9
The creative professionalism used to fix my gauge cluster
Notice how there is a jumper wire between the WHITE and BLUE connectors...
77308-gaugeclusterjump.jpg


[Linked Image]
It's not just your imagination...
Your day really does go by twice as fast while on EverythingCelica.com
Join the conversation - Register Now or Log In to add your comment


Link Copied to Clipboard
Member Spotlight
toysport_celica
toysport_celica
2000 Toyota Celica
Ca

Posts: 52
Joined: August 2004
Thank you.: me, myself, and I...!
Random: a bowl of rice, fried chicken, and a glass of water!
Show All Member Profiles 
Recent Topics
Spyder Headlight LEDs
by Dxnxld - Mar 25, 2024 6:51am
Anyone ever hear this noise?
by CeliacCelica - Mar 21, 2024 10:51am
Clunking sound (not sure where from)
by Juliansky - Mar 20, 2024 3:01am
Does anybody know where i can find a S53 trans rebuild kit?
by MoreRamenNoodles - Mar 19, 2024 8:57pm
Urgent
by SoloXKay - Mar 19, 2024 11:58am
OEM speedometer on aftermarket ecu
by Penaman99 - Mar 5, 2024 11:23am
Brake master cylinder
by Nigel100 - Mar 5, 2024 2:45am
newly purchased 2000 GTS
by CantShift - Feb 27, 2024 9:06pm
Customize Your Toyota Celica Privacy Policy · About · Contact
Privacy Policy · About · Contact
CelicaHobby.com is an independent Toyota Celica enthusiast website. CelicaHobby.com is not sponsored by or affiliated with Toyota Motor Sales, USA, Inc. in any way. The Toyota and Celica names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.
© CelicaHobby.com, 2001-2024
Powered by UBB.threads™ PHP Forum Software 8.0.0
(Preview build 20230331)