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Joined: Jan 2004
Posts: 2,371
SHO - NUFF
2003 Toyota Celica GT
SHO - NUFF
2003 Toyota Celica GT
Joined: Jan 2004
Posts: 2,371
I have 2 bad o2 sensors...and now the dealer has to replace my catalytic converter...They said that they were about the 30th celica they had to do it for...and I think isaac and a few other people posted about this problem...so heads up if you get a cel...go to autozone, and get the codes pulled for free...

Joined: Jan 2004
Posts: 1,612
2low2slow
2002 Toyota Celica GT
2low2slow
2002 Toyota Celica GT
Joined: Jan 2004
Posts: 1,612
thanks for the info, i also had a bad o2 sensor a while back


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Joined: Nov 2003
Posts: 453
Senior Member
2000 Toyota Celica
Senior Member
2000 Toyota Celica
Joined: Nov 2003
Posts: 453
I had the same problem...went to autozone baught there bosch POS O2 sensors and it didn't fix it. Went to toyota baught there O2 sensors which WERE CHEAPER than autozones. didn't fix it. Then I talked to my mechanic at cobb county toyota and we had talked about the ecu being faulty and it was he replaced it free of charge under warantee. He said my car was the 1st to do something like that, but we had talked it out. Cobb county toyota is the best. So don't go and buy another cat, chances are it isn't bad. I don't think you run like 120 octane nor do you have a piggy back ignition system. If the cat did go bad, the only way you might be able to get it done for free is to put your stock shit back on and talk some shit to them about it being a faulty cat


The 2ZZ god

Joined: May 2002
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Likes: 9
ECelica Admin
2001 Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT
Joined: May 2002
Posts: 5,979
Likes: 9
Jtultra, we had our catalytic converters replaced, along with the 02 sensors... when your problem came up, did you JUST replace the sensors, or did you also replace the cat?

Mine started smelling like ammonia - probably your's was melted through and was soon to start smelling the same idunno


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Joined: Jan 2004
Posts: 2,371
SHO - NUFF
2003 Toyota Celica GT
SHO - NUFF
2003 Toyota Celica GT
Joined: Jan 2004
Posts: 2,371
^^^yeah...its all covered under warranty

Joined: Nov 2003
Posts: 453
Senior Member
2000 Toyota Celica
Senior Member
2000 Toyota Celica
Joined: Nov 2003
Posts: 453
nope, Cat was fine and was never replaced.


The 2ZZ god
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mrluilou
2001 Toyota Celica GT
Palmdale, California

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