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#1
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New catalytic converter needed?
Any advice would be greatly appreciated! The check engine light on my '99
Accord has been going on and off since 98,000 miles and I now have 132,000 on it. Autozone checked the error code and it was code 67 - catalyst system efficiency below threshold. Performance and gas mileage was unchanged so I decided to live with it. The light now stays on and I occasionally pull the fuse to clear it but it comes back on after a day or two. The car is still running great but I need an emissions test in January and they plug into and check the code data. Honda wants almost $800 just for the cat. I see there are a lot of online auto parts stores selling direct fit cats for the '99 Accord EX 4 cyl at a price range from $112 to $248. Any experience and recommendations?? I also read that in a lot of cases it isn't necessarily the cat. I did replace the gas cap just in case and a friend checked the O2 sensor and said it appeared to be ok. I did check and was able to remove the existing O2 sensor. I'm not sure if I should just try a new sensor first or just order a new cat. Thanks in advance for any advice. George |
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#2
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LaForte wrote: > > Any advice would be greatly appreciated! The check engine light on my '99 > Accord has been going on and off since 98,000 miles and I now have 132,000 > on it. Autozone checked the error code and it was code 67 - catalyst system > efficiency below threshold. Performance and gas mileage was unchanged so I > decided to live with it. The light now stays on and I occasionally pull the > fuse to clear it but it comes back on after a day or two. The car is still > running great but I need an emissions test in January and they plug into and > check the code data. > > Honda wants almost $800 just for the cat. I see there are a lot of online > auto parts stores selling direct fit cats for the '99 Accord EX 4 cyl at a > price range from $112 to $248. Any experience and recommendations?? > > I also read that in a lot of cases it isn't necessarily the cat. I did > replace the gas cap just in case and a friend checked the O2 sensor and said > it appeared to be ok. I did check and was able to remove the existing O2 > sensor. I'm not sure if I should just try a new sensor first or just order a > new cat. > > Thanks in advance for any advice. > George Your car has two O2 sensors, one before the cat and one after. Which one did you test? |
#3
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A SMOG check will usually tell you if the CAT is the problem. In
California, if you fail a SMOG test, the re-test is usually free, or pay $10 for the initial test and come back. Any muffler shop can put an aftermarket CAT for about $125 installed. "LaForte" > wrote in message ... > Any advice would be greatly appreciated! The check engine light on my '99 > Accord has been going on and off since 98,000 miles and I now have 132,000 > on it. Autozone checked the error code and it was code 67 - catalyst system > efficiency below threshold. Performance and gas mileage was unchanged so I > decided to live with it. The light now stays on and I occasionally pull the > fuse to clear it but it comes back on after a day or two. The car is still > running great but I need an emissions test in January and they plug into and > check the code data. > > Honda wants almost $800 just for the cat. I see there are a lot of online > auto parts stores selling direct fit cats for the '99 Accord EX 4 cyl at a > price range from $112 to $248. Any experience and recommendations?? > > I also read that in a lot of cases it isn't necessarily the cat. I did > replace the gas cap just in case and a friend checked the O2 sensor and said > it appeared to be ok. I did check and was able to remove the existing O2 > sensor. I'm not sure if I should just try a new sensor first or just order a > new cat. > > Thanks in advance for any advice. > George > > |
#4
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I think the code is specific enough to say the cat is bad. In OBD II cars
(all sold in US since '96, and some as early as '94) there are 2 O2 sensors. The one between the engine and the cat is used to control mixture. The one after the cat is used to see if the actual cat output is nearly free of CO. The condition of each sensor can be determined by the ECU, and you don't have a code for a bad sensor. What it is saying is that the rear sensor voltage is rising, indicating excessive CO from the converter even though the front sensor is controlling the mixture okay. There is a small possibility it is either sensor, but the chance isn't worth the cost of a sensor. I have had a local shop replace the cat in my Volvo several years ago. I paid about $100, parts and labor, and it worked great. I can't imagine any reason the inexpensive aftermarket cats specified for your car wouldn't work well. (Note that some earlier cats were 2 stage; they didn't have a stage for breaking down NOx. Putting one of those on will cause your car to fail NOx, guaranteed.) If you call local shops for a quote, you will get a range of prices. My experience with muffler and radiator shops is that low price is often consistent with being proficient enough to get the job done quickly - the work isn't rocket science for any pro. Check with friends to ensure the shop isn't a notorious ripoff, and go for it. Mike "LaForte" > wrote in message ... > Any advice would be greatly appreciated! The check engine light on my '99 > Accord has been going on and off since 98,000 miles and I now have 132,000 > on it. Autozone checked the error code and it was code 67 - catalyst > system > efficiency below threshold. Performance and gas mileage was unchanged so I > decided to live with it. The light now stays on and I occasionally pull > the > fuse to clear it but it comes back on after a day or two. The car is still > running great but I need an emissions test in January and they plug into > and > check the code data. > > Honda wants almost $800 just for the cat. I see there are a lot of online > auto parts stores selling direct fit cats for the '99 Accord EX 4 cyl at a > price range from $112 to $248. Any experience and recommendations?? > > I also read that in a lot of cases it isn't necessarily the cat. I did > replace the gas cap just in case and a friend checked the O2 sensor and > said > it appeared to be ok. I did check and was able to remove the existing O2 > sensor. I'm not sure if I should just try a new sensor first or just order > a > new cat. > > Thanks in advance for any advice. > George > > |
#5
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LaForte wrote:
> > Honda wants almost $800 just for the cat. An original equipment Honda catalytic converter from http://www.hondaatuomotiveparts.com sells for about $474. Eric |
#6
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Remember, there's an 8yr/80,000 mile Federal emissions warranty that
covers the CAT and everything required to replace it (Y-pipe, clamps, hanger, etc). Outside 8/80 you can go to an aftermarket muffler shop and get a generic one fitted for $100 ~ $150. In article > Eric > writes: >LaForte wrote: >> >> Honda wants almost $800 just for the cat. > >An original equipment Honda catalytic converter from >http://www.hondaatuomotiveparts.com sells for about $474. > >Eric |
#7
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"Randolph" > wrote in message ... > > LaForte wrote: > > > > Any advice would be greatly appreciated! The check engine light on my '99 > > Accord has been going on and off since 98,000 miles and I now have 132,000 > > on it. Autozone checked the error code and it was code 67 - catalyst system > > efficiency below threshold. Performance and gas mileage was unchanged so I > > decided to live with it. The light now stays on and I occasionally pull the > > fuse to clear it but it comes back on after a day or two. The car is still > > running great but I need an emissions test in January and they plug into and > > check the code data. > > > > Honda wants almost $800 just for the cat. I see there are a lot of online > > auto parts stores selling direct fit cats for the '99 Accord EX 4 cyl at a > > price range from $112 to $248. Any experience and recommendations?? > > > > I also read that in a lot of cases it isn't necessarily the cat. I did > > replace the gas cap just in case and a friend checked the O2 sensor and said > > it appeared to be ok. I did check and was able to remove the existing O2 > > sensor. I'm not sure if I should just try a new sensor first or just order a > > new cat. > > > > Thanks in advance for any advice. > > George > > Your car has two O2 sensors, one before the cat and one after. Which one > did you test? Tested the one after the cat.... |
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