Last post on Aug 16, 2013 at 4:23 PM
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Toyota Camry, Sedan
#13 of 153 02 Camry LE 4 cyl - 2nd catalytic conv replacement
Jan 03, 2009 (3:32 pm)
I've got an 02 Camry LE 4cyl with ~ 254k miles and just had to replace the catalytic converter for the second time.
Had to replace the catalytic converter when the check engine light came on for the first time back in 11/04 when the vehicle had 139k miles. Toyota was kind enough to do a "good will" no charge warranty replacement.
Once again within the past 6 mos or so, the check engine light came back on again and catalytic converter needed replacement again. Total cost to repair at Dealer this time around was $617 which included $377 for the part, $53 for gaskets and $187 for labor.
According to my dealer, I should expect this to occur every 100k miles give or take. He further explained that today's fuel mixtures are harder on the cat converters, thus causing them to fail earlier/more frequently. Don't know if this is true or not, but this is what my dealer told me so take it FWIW.
Other then the issues with the cat converter, I can't complain much about the reliability of my Camry as I've pretty much had 254k trouble free miles and going strong.
#14 of 153 Re: 02 Camry LE 4 cyl - 2nd catalytic conv replacement [talen316]
Jan 03, 2009 (4:35 pm)
Where do you live that you are racking up that many miles each day? That's great service from that 4 cylinder, hope I'm as lucky!
#15 of 153 Re: 02 Camry LE 4 cyl - 2nd catalytic conv replacement [kiawah]
Jan 11, 2009 (9:07 am)
Charlotte metro area... Wife drove the Camry first couple of years and logged a ton of miles due to multi-state territory. Now, it gets driven as daily commuter car up and down I-77. At 255k miles, it shows no signs of slowing down. People that get in it can't believe the mileage it has on it given its condition. Here's wishing you as many trouble free miles with yours as we've had with ours...
#16 of 153 Re: 1999 4Cyl Check Engine Light - Catalytic Converter [chet01588]
Jan 20, 2009 (7:39 am)
FYI: I have a 1999 4Cyl Camery LE. Check engine light came ON at 56k, took it to the dealer. They asked $110 for the diag. & end of diag. asked to replace the Cat. converter $850. I took the car to my mechanic and he suggested that it could be sensor or converter, we changed the sensor first (sensor+labor $250) and re-seted the check engine light. so far its running good 57500miles now.
#17 of 153 2001 Toyota Camry 4Cyl Ck Eng Lt, P0420
Feb 01, 2009 (9:08 am)
I have a 2001 Toyota Camry LE w/124k miles(Original Owner) and the check engine light came on about a week ago. I took it to a auto parts store and they checked the computer with a code reader. The Code P0420 appeared and said 'Catalyst Efficiency Below Threshold, Bank 1'. Both O2 sensors have been replaced within 25k miles. In the Haynes book, it talked about A/F sensor. I would like to know if could be this sensor, the catalytic converter or the 2 other O2 sensors(Upstream sensor replaced by Dealer and downstream replaced w/aftermarket). Is it normal for a catalytic converter to go bad...I thought they last pretty long. I would like to take care of the problem myself...especially how the economy is but at the same time if I have to go to the dealer, I will go because I like my car. Which sensor should I replace or is the catalytic converter bad?
#18 of 153 2004 Toyota Camry 4Cyl Ck Eng Lt, P0420
Feb 27, 2009 (4:20 pm)
I am dealing with the exact same issue on my 04 Camry with 152k on the odometer. About a week ago the check engine light came on. I own a code reader which indicated that the upstream O2 sensor had failed. I went to the local autoparts store to purchase the sensor and was advised that I should replace both the upstream and downstream (below the converter) sensors at the same time.
The funny thing is the sensors were boxed as aftermarket Bosch, but actually the upstream was stamped "Toyota" and the downstream was stamped "Denso" which I believe both are OEM Toyota.
I went ahead and installed both sensors and the check engine light disappeared for about a day. The next day about halfway home from work (80 miles one way) the check engine light came on again, this time giving the code of P0420 which indicates the converter has failed.
I took the car to the dealer and asked them to check the new sensors to ensure that I had not recieved a bad sensor. The dealer did not bother to test them, and just assumed that they were good. He quoted $795.00 to replace the converter which he did not have in stock. I asked him how did he know that the converter was bad, and did he test the emissions from the tailpipe? He advised that he did not have the equipment to test the emissions and also admited that if the downstream sensor was bad it would indicate P0420.
My advice is to get the emissions from the tailpipe checked before you shell out for a converter, I know I am.
#19 of 153 Re: 2004 Toyota Camry 4Cyl Ck Eng Lt, P0420 [ab4d]
Mar 04, 2009 (5:23 pm)
First Id like to say I have fixed a lot of the po 420 codes on california and fedaral emission camrys 4 and 6 cyl. 9 out of 10 times it is from a failing cat. I have never ever seen a rear sensor cause a po 420 code. As a sensor fails It generally gets lazy not switching fast enough. On a car with a working cat the rear 02 sensor should look lazy and have very little activity at all, unlike like the frt air fuel sensor on a calif car, or an 02 sensor on a federal. If u have not noticed way to many waste money on the sensors because they have no clue what they are looking at It is very easy to diagnose this code if u have any clue what u are doing.The frt air fuel sensor can only be tested using a lab scope. Also aftermarket cats absolutely do not work on california emissions vehicles or they work for an extremely short time .On the later model camry 4cyl around 97 to 02? They have 2 cats one in the manifold and one in the frt pipe. If u are having the 420 code u could opt to try changing the front cat ( part of the frt manifold) As it is substantially cheaper then the rear. But both are monitored by the computer. I bet these people changing cats every 6 months are putting on junk aftermarket!!!!!!! The rear factory cat is around 1100 no way u are changing that every 6 months. And if the vehicle is running correctly easy to ck by cking fuel trims should last 100k or more. Please any questions u can e mail me.brad2500hdaol.com
#20 of 153 Re: 2004 Toyota Camry 4Cyl Ck Eng Lt, P0420 [toptech]
Mar 04, 2009 (8:19 pm)
I have a 2001 4cyl Camry 125kmiles and had the ck engine lt on and live in the northeast area. I went to autozone to ck the code and of course the P0420 popped up. Both sensors were replaced( 1 by the dealer at 90k miles and the 2nd by myself w/aftermarket sensor at 110k miles) I wasn't sure if it was the catalytic converter or not(maybe in denial cause it cost a lot to replace) but to make sure, I disconnected the battery overnite to reset the computer. The next morning, I connected it and the ck eng lite was gone and it hasn't come on ever since. The question is that is my catalytic converter bad or what? Did I do more damage by just resetting the computer or was it just an error? I assume if the cat was bad, the code would pop up. If I'm doing an injustice by resetting the computer tell me so, if not i guess nothing was wrong. I just hope i am not doing any damage.
#21 of 153 Re: 2004 Toyota Camry 4Cyl Ck Eng Lt, P0420 [tmoney4]
Mar 05, 2009 (4:19 pm)
Belive it or not it will be back on. If u had the code cleared it may stay out for several weeks or even a month Trust me it will be back. U will do no more damage to ur car if u clear it everytime it comes back on. But in most states it it has a code current ot in memory it will fail for an emissions sticker. I bet u have a cat that is borderline bad and under the rite circumstances ie load emgine temp fuel trims. The comp will pick up on it and trip the light again. Same thing happens when people replace an 02 sensor thinking they fix this problem and clear the code sometimes the light will stay out for a month til the computer sees the circomstances where the converter is not working the way it should it will put the light back on. Just ck back here when the light comes back on. The 420 code is an emissions code and it wont get u stuck or cause any problems but put the light on and maybe polute a bit more then it should in california standards.
#22 of 153 Re: 2004 Toyota Camry 4Cyl Ck Eng Lt, P0420 [toptech]
Mar 05, 2009 (8:08 pm)
Thanks for the info...i will definitly keep an i on it. Its funny u said that about the sensor. I replaced the downstream sensor9by the converter) and thought that was the problem and scared to take to the dealer cuz i no they r going to charge me an arm and a leg! lol If it goes on of course i will ck the code...if it is the converter approx how much is it from the dealer, i am in NY and dnt hav CA standards. I am a little handy...can i do it myself or is it too hard?Thanks again for the info