Previous Thread
Next Thread
New Reply
Print Thread
Rate Thread

#136613 Mar 27, 2:53pm
Joined: Mar 2004
Posts: 5
New Member
2003 Toyota Celica GT
New Member
2003 Toyota Celica GT
Joined: Mar 2004
Posts: 5
I took out my cats and now the injectors are firing to much. Has anyone else run into this problem?

Joined: Oct 2003
Posts: 852
Senior Member
2001 Toyota Celica
Senior Member
2001 Toyota Celica
Joined: Oct 2003
Posts: 852
iM DOING THE SAME THING THIS WEEK AFTER I GET MY CAR BACK .. HOPE IT DOSENT DO THE SAME THING ... HOW MUCH DID YOU PAY?? DOES IT SOUND GOOD?? AND WILL THE EXESSIVE FIRING ALWAYS HAPPEN????



Last edited by mastro543; Mar 27, 2004 4:43pm.

Boost in March

Joined: Aug 2003
Posts: 2,269
Specialist
2004 Dodge SRT4
Specialist
2004 Dodge SRT4
Joined: Aug 2003
Posts: 2,269
i think you should put your cat back, and get a kazuma. or at least get a high flow cat


was....5speed with i/h/e
15.41 @ 89.30mph 2.282 60'

is....04 srt4 stock
13.936 100.15mph 2.177 60'

Joined: Oct 2003
Posts: 92
Member
Member
Joined: Oct 2003
Posts: 92
there is only one cat on the 7th gen celica - do some searching, there is a way to fool the ecu into thinking the cat is still there

Joined: Jan 2004
Posts: 2,371
SHO - NUFF
2003 Toyota Celica GT
SHO - NUFF
2003 Toyota Celica GT
Joined: Jan 2004
Posts: 2,371
the way to fool your ecu into thinking you still have a cat is to get what's called a "black box"...it mounts on your frame and you connect it to the wiring of the oxygen sensors that were with your cat (should be 1 before and 1 after)...you'll have to do a search, but they are made because I had one on the last vehicle I had...they work by telling your ecu that your o2 sensors are still there and working fine...hope this helps a little thumbsup

Joined: Jul 2003
Posts: 2,040
ECelica Staff
2004 GMC Canyon Z-71
ECelica Staff
2004 GMC Canyon Z-71
Joined: Jul 2003
Posts: 2,040
Why would you take ur cat out? rofl ur not gonna get anything out of that

Joined: Mar 2004
Posts: 26
Member
2003 Toyota Celica GT
Member
2003 Toyota Celica GT
Joined: Mar 2004
Posts: 26
i have a custom straight pipe wit a 5inch hayame exhaust there's no problem. in my opinion it gives it a more aggressive and fuller tone, especially wit an Intake.

Joined: Sep 2003
Posts: 799
Senior Member
2001 Toyota Celica GT
Senior Member
2001 Toyota Celica GT
Joined: Sep 2003
Posts: 799
PLEASE leave the cat installed, its there for a purpose


a kid told me that celicas handle like crap... i laughed

Joined: Aug 2003
Posts: 6,365
Likes: 1
Caleb
2000 Toyota Celica
Caleb
2000 Toyota Celica
Joined: Aug 2003
Posts: 6,365
Likes: 1
Originally Posted by fastceli2001
PLEASE leave the cat installed, its there for a purpose

it's there for emissions standards.

taking it off won't hurt your car one bit, just the environment rofl

Joined: Aug 2003
Posts: 6,365
Likes: 1
Caleb
2000 Toyota Celica
Caleb
2000 Toyota Celica
Joined: Aug 2003
Posts: 6,365
Likes: 1
Originally Posted by trog2233
Why would you take ur cat out? rofl ur not gonna get anything out of that

i thought it helps a little bit (not much). i thought it reduced some backpressure when you take it out and thus increasing higher rpm whp?

Joined: Sep 2003
Posts: 799
Senior Member
2001 Toyota Celica GT
Senior Member
2001 Toyota Celica GT
Joined: Sep 2003
Posts: 799
Originally Posted by sPeEd4tHeNeEd
Originally Posted by fastceli2001
PLEASE leave the cat installed, its there for a purpose

it's there for emissions standards.

taking it off won't hurt your car one bit, just the environment rofl
exactly. air quality is bad enough frown


a kid told me that celicas handle like crap... i laughed

Joined: Sep 2003
Posts: 2,241
Specialist
2000 Toyota Celica
Specialist
2000 Toyota Celica
Joined: Sep 2003
Posts: 2,241
we noticed the same thing. With the CAT off the car runs very rich. If you do not have something like the Power FC to tune the car I would NOT slap on a str8 pipe. it doesnt really do any good at all.


Best 60' 1.959 best 1/4 - 13.7 @ 101mph

Joined: Sep 2003
Posts: 2,241
Specialist
2000 Toyota Celica
Specialist
2000 Toyota Celica
Joined: Sep 2003
Posts: 2,241
actually he had LESS whp then I did cause he had the str8 pipe.


Best 60' 1.959 best 1/4 - 13.7 @ 101mph

Joined: Mar 2004
Posts: 26
Member
2003 Toyota Celica GT
Member
2003 Toyota Celica GT
Joined: Mar 2004
Posts: 26
Originally Posted by Lucky_317
we noticed the same thing. With the CAT off the car runs very rich. If you do not have something like the Power FC to tune the car I would NOT slap on a str8 pipe. it doesnt really do any good at all.

since i have a str8 pipe i should get a Power FC?

Joined: Oct 2003
Posts: 92
Member
Member
Joined: Oct 2003
Posts: 92
Originally Posted by VieTExchange
5inch hayame exhaust
rolleyes

Joined: Mar 2004
Posts: 5
New Member
2003 Toyota Celica GT
New Member
2003 Toyota Celica GT
Joined: Mar 2004
Posts: 5
i paid 150 for 2-1/2 madrel fabricated pipe to go to my tanabe super racing medallion

Joined: Nov 2003
Posts: 417
Razor Blades
2002 Toyota Celica GT
Razor Blades
2002 Toyota Celica GT
Joined: Nov 2003
Posts: 417
Originally Posted by killacreations
i paid 150 for 2-1/2 madrel fabricated pipe to go to my tanabe super racing medallion

That is what I thought about doing. But everyone said it would not be worth the gains and I would loose some low-end torque. What are your thoughts?


Mizery loves company.

Joined: Mar 2004
Posts: 5
New Member
2003 Toyota Celica GT
New Member
2003 Toyota Celica GT
Joined: Mar 2004
Posts: 5
i havnt noticed any loss of torque.

Joined: Jun 2003
Posts: 2,863
Specialist
2001 Toyota Celica GT
Specialist
2001 Toyota Celica GT
Joined: Jun 2003
Posts: 2,863
keep on polluting our air having a loud ass exhaust, we need more people like you wave

Joined: Mar 2004
Posts: 5
New Member
2003 Toyota Celica GT
New Member
2003 Toyota Celica GT
Joined: Mar 2004
Posts: 5
we sure do dont we

Joined: Jul 2003
Posts: 2,353
Playboy
2001 Acura Integra
Playboy
2001 Acura Integra
Joined: Jul 2003
Posts: 2,353
Originally Posted by v3n0m
keep on polluting our air having a loud ass exhaust, we need more people like you wave

Well your Tanabe isn't making it any better.

Joined: Jun 2003
Posts: 2,863
Specialist
2001 Toyota Celica GT
Specialist
2001 Toyota Celica GT
Joined: Jun 2003
Posts: 2,863
^ umm...it's 50 state legal, so it meets all the governments air quality restrictions. the cats are there for emissions and cutting back on the pollution tongue

Joined: Dec 2003
Posts: 781
Senior Member
2000 Toyota Celica
Senior Member
2000 Toyota Celica
Joined: Dec 2003
Posts: 781
Pleeeease!! Ff people are so hung up about pollution, why don't they sell their car and ride the buss?

Loud is nice! smile

Joined: Mar 2004
Posts: 5
New Member
2003 Toyota Celica GT
New Member
2003 Toyota Celica GT
Joined: Mar 2004
Posts: 5
CELICAT IS RIGHT GET RID OF YOUR CAR AND BY A BYCICLE.

Joined: Aug 2003
Posts: 6,365
Likes: 1
Caleb
2000 Toyota Celica
Caleb
2000 Toyota Celica
Joined: Aug 2003
Posts: 6,365
Likes: 1
Originally Posted by killacreations
i havnt noticed any loss of torque.

gains & losses that are minimal can't be noticed.

more than likely, driver bias (not hard #'s) is what you use as judgement.

for instance, i add a cai (whoah, i feel the power!. not actually, you really just HEAR it..its only about a 3 whp gain so FEELing anything would be an amazing feet.)

Joined: Aug 2003
Posts: 6,365
Likes: 1
Caleb
2000 Toyota Celica
Caleb
2000 Toyota Celica
Joined: Aug 2003
Posts: 6,365
Likes: 1
Originally Posted by killacreations
CELICAT IS RIGHT GET RID OF YOUR CAR AND BY A BYCICLE.

yes and no.

personally, i'm not much of a treehugger. i'm for drilling for oil & florida blah blah blah.

however, i think if you are to drive your celica on public roads, you have a civic duty to obey the emissions laws of those roads. if your state says 'no, don't drive with an emissions hazard sr8 pipe, then you shouldnt.

if you are on private property--thats all on you. but somehow i doubt all you will be driving on is private property

Joined: Aug 2003
Posts: 399
Member
2000 Toyota Celica
Member
2000 Toyota Celica
Joined: Aug 2003
Posts: 399
if ya wanna drive with a st8t pipe go at it, but please leave the cat on. Taking it out is not worth the hp. Lets keep the air clean. The noise from the pipe is between you and your cops. Its not like taking the cat is gonna make your car as fast as a corvette. gains are not worth the consequences


[Linked Image]

Joined: Nov 2003
Posts: 660
Senior Member
1995 Toyota Celica ST
Senior Member
1995 Toyota Celica ST
Joined: Nov 2003
Posts: 660
i'm getting str8 pipes as soon as my tips come in, but mainly because i'm getting a flame thrower

and in case no one noticed he's from MS, hence NO EMISSION LAWS and cops don't care about sound, there are tons of rednecks with there bug chevy V8s that loud as hell

Joined: Jul 2003
Posts: 2,040
ECelica Staff
2004 GMC Canyon Z-71
ECelica Staff
2004 GMC Canyon Z-71
Joined: Jul 2003
Posts: 2,040
Originally Posted by Celicaracer18
i'm getting str8 pipes as soon as my tips come in, but mainly because i'm getting a flame thrower

and in case no one noticed he's from MS, hence NO EMISSION LAWS and cops don't care about sound, there are tons of rednecks with there bug chevy V8s that loud as hell

OMG please tell ur ur kidding HAHAHHHAHAHAHAHAHAHAHA a flame thrower !!!!!!!!!!!!

Joined: Nov 2003
Posts: 2
New Member
2003 Toyota Celica GT
New Member
2003 Toyota Celica GT
Joined: Nov 2003
Posts: 2
Are you serious kid? one, with your flame thrower you will need a Fiberglass fire resistant rear bumper that will be a pretty penny. two, where do you plan on using it? at a stop light? rofl

Joined: Jun 2003
Posts: 2,863
Specialist
2001 Toyota Celica GT
Specialist
2001 Toyota Celica GT
Joined: Jun 2003
Posts: 2,863
too much F&F in the kids head rofl tongue happywink

Joined: Sep 2003
Posts: 2,241
Specialist
2000 Toyota Celica
Specialist
2000 Toyota Celica
Joined: Sep 2003
Posts: 2,241
with out tuning you WILL un rich and be slower then you should be. but eh do a before/after dyno and let us know what really happens.


Best 60' 1.959 best 1/4 - 13.7 @ 101mph

Joined: Nov 2003
Posts: 417
Razor Blades
2002 Toyota Celica GT
Razor Blades
2002 Toyota Celica GT
Joined: Nov 2003
Posts: 417
thatsfunnyFlame thrower

Edit: What do you call a bouncer at a gay bar?
[Linked Image]

Last edited by Mizery_Machine; Apr 5, 2004 1:26pm.

Joined: Nov 2003
Posts: 417
Razor Blades
2002 Toyota Celica GT
Razor Blades
2002 Toyota Celica GT
Joined: Nov 2003
Posts: 417
400 Posts! Wooo!


Mizery loves company.

Joined: Sep 2003
Posts: 2,241
Specialist
2000 Toyota Celica
Specialist
2000 Toyota Celica
Joined: Sep 2003
Posts: 2,241
lol look at all this whoring shame on you rofl


Best 60' 1.959 best 1/4 - 13.7 @ 101mph

Joined: Aug 2003
Posts: 1,249
Specialist
2000 Toyota Celica GT
Specialist
2000 Toyota Celica GT
Joined: Aug 2003
Posts: 1,249
Helping to destroy the air is not worth the .5hp you might gain. Please put the cat back, removing it only makes gains on high powered Turbo cars, where they are a major bottleneck (when you have a 3" exhaust, which you don't). Obviously, the only effect of removing it for you was causing the engine to run way rich, which is a negative.

Joined: Sep 2003
Posts: 3,070
Specialist
2000 Toyota Celica
Specialist
2000 Toyota Celica
Joined: Sep 2003
Posts: 3,070
Originally Posted by silver
Helping to destroy the air is not worth the .5hp you might gain. Please put the cat back, removing it only makes gains on high powered Turbo cars, where they are a major bottleneck (when you have a 3" exhaust, which you don't). Obviously, the only effect of removing it for you was causing the engine to run way rich, which is a negative.

Wow. All of you people that are complaining that our cars with the cats off are destroying the environment. I figure that with it off, we are still putting out less pollution than Excursions and Escalades.


The way I figure it is that the world is going to hell in a hand basket anyways, and chances are, the world will end due to us blowing each other up, and not pollution in 500 or so years.

Joined: Jun 2003
Posts: 2,863
Specialist
2001 Toyota Celica GT
Specialist
2001 Toyota Celica GT
Joined: Jun 2003
Posts: 2,863
Excursions & Escalades do pollute more, but they can carry nine people, which means that three celicas have to be used to carry that many people, so it balances out.

Joined: Nov 2003
Posts: 660
Senior Member
1995 Toyota Celica ST
Senior Member
1995 Toyota Celica ST
Joined: Nov 2003
Posts: 660
Originally Posted by v3n0m
Excursions & Escalades do pollute more, but they can carry nine people, which means that three celicas have to be used to carry that many people, so it balances out.

not really because even though they can carry that many people, usually there is only 1 or 2

Joined: Nov 2003
Posts: 660
Senior Member
1995 Toyota Celica ST
Senior Member
1995 Toyota Celica ST
Joined: Nov 2003
Posts: 660
Originally Posted by Toyota_Doc
Are you serious kid? one, with your flame thrower you will need a Fiberglass fire resistant rear bumper that will be a pretty penny. two, where do you plan on using it? at a stop light? rofl


One: it shoots flames away from the car not towards the bumper wave (my friend has one and the flames are no where near the bumper); and Two: no, usually in parking lots (and mabey when someone is riding my ass)

flame thrower doesn't shoot flames every time you start the car or shift like in the f&f, it's on call by reving the engine and pushing a button, and please don't associate flame throwers to F&F anymore, you act like thats where they started or thats where I got the idea, they have been on hotrods for years and thats where they started

Joined: Jun 2003
Posts: 2,863
Specialist
2001 Toyota Celica GT
Specialist
2001 Toyota Celica GT
Joined: Jun 2003
Posts: 2,863
Doing it too often will ruin your engine.

Joined: Nov 2002
Posts: 396
Member
Member
Joined: Nov 2002
Posts: 396
test pipes aka straight pipes, will run rich on the stock ecu (which is bad)
and I actually lost quite a bit of power, compared to lucky.

once its tuned out with the pfc, the decreased backpressure will be a great help to the top end on the 2zz.

you will get a cel, and it will be because the sub 02 sensor (the second one on the exhaust line) will read incorrectly, and the cel is a simple check cat code.

This wont happen right away, the test cycle only runs when the ecu is at a constant rpm for a set amount of time, then it sees the sub 02's readings and throws the cel.

Split second does make a generic kit to fool the stock ecu that the sub 02 is working properly, and hence no cel, but with the pfc that wont happen smile


Controlled Inertia
President
8.831 @ 79.8 mph (best 1/8 new motor 12/02/04)
2.007 (best 60')
All motor

Joined: Nov 2003
Posts: 660
Senior Member
1995 Toyota Celica ST
Senior Member
1995 Toyota Celica ST
Joined: Nov 2003
Posts: 660
i don't have to worry about that because i don't have a 2 O2 sensors or at least not that i can see, BTW i have a 6th gen thats why i am doing it

Joined: Oct 2003
Posts: 852
Senior Member
2001 Toyota Celica
Senior Member
2001 Toyota Celica
Joined: Oct 2003
Posts: 852
Originally Posted by Celicaracer18
Originally Posted by Toyota_Doc
Are you serious kid? one, with your flame thrower you will need a Fiberglass fire resistant rear bumper that will be a pretty penny. two, where do you plan on using it? at a stop light? rofl


One: it shoots flames away from the car not towards the bumper wave (my friend has one and the flames are no where near the bumper); and Two: no, usually in parking lots (and mabey when someone is riding my ass)

flame thrower doesn't shoot flames every time you start the car or shift like in the f&f, it's on call by reving the engine and pushing a button, and please don't associate flame throwers to F&F anymore, you act like thats where they started or thats where I got the idea, they have been on hotrods for years and thats where they started

Flame throwers burn your back bumper i know a guy w. a celica by my neighborhood and all around his exhaust the rear bumper is all burnt off looks nasty but its ur car do w.e you please

Last edited by mastro543; Apr 6, 2004 4:12pm.

Joined: Jan 2004
Posts: 47
Member
2000 Toyota Celica
Member
2000 Toyota Celica
Joined: Jan 2004
Posts: 47
Originally Posted by Illusive
test pipes aka straight pipes, will run rich on the stock ecu (which is bad)
and I actually lost quite a bit of power, compared to lucky.

once its tuned out with the pfc, the decreased backpressure will be a great help to the top end on the 2zz.

you will get a cel, and it will be because the sub 02 sensor (the second one on the exhaust line) will read incorrectly, and the cel is a simple check cat code.

This wont happen right away, the test cycle only runs when the ecu is at a constant rpm for a set amount of time, then it sees the sub 02's readings and throws the cel.

Split second does make a generic kit to fool the stock ecu that the sub 02 is working properly, and hence no cel, but with the pfc that wont happen smile

i have a straight pipe, but the codes I pulled off were of multiple misfirings (which is currently under repair now). the PFC would eliminate the codes (if it's caused by the pipe)? and where can I find the thing to trick the ECU if I do decide on that route?

thanks,
mark

Joined: Nov 2002
Posts: 396
Member
Member
Joined: Nov 2002
Posts: 396
Originally Posted by blueTRD
Originally Posted by Illusive
test pipes aka straight pipes, will run rich on the stock ecu (which is bad)
and I actually lost quite a bit of power, compared to lucky.

once its tuned out with the pfc, the decreased backpressure will be a great help to the top end on the 2zz.

you will get a cel, and it will be because the sub 02 sensor (the second one on the exhaust line) will read incorrectly, and the cel is a simple check cat code.

This wont happen right away, the test cycle only runs when the ecu is at a constant rpm for a set amount of time, then it sees the sub 02's readings and throws the cel.

Split second does make a generic kit to fool the stock ecu that the sub 02 is working properly, and hence no cel, but with the pfc that wont happen smile

i have a straight pipe, but the codes I pulled off were of multiple misfirings (which is currently under repair now). the PFC would eliminate the codes (if it's caused by the pipe)? and where can I find the thing to trick the ECU if I do decide on that route?

thanks,
mark

the codes you were getting was another problem all together.

splitsecond has a website just too lazy to look it up.


Controlled Inertia
President
8.831 @ 79.8 mph (best 1/8 new motor 12/02/04)
2.007 (best 60')
All motor
Join the conversation - Register Now or Log In to add your comment


Link Copied to Clipboard
Member Spotlight
Nautique65
Nautique65
2001 Toyota Celica GT
TN, Hendersonville

Posts: 123
Joined: August 2003
Thank you.: Show & Go Custom Automotive
Random: Give a man a fire and he is warm for the night, but set a man on fire and he is warm for the rest of his life
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)