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Catalytic Converter

(2002 Toyota Solara)
in New Kensington, PA on January 22, 2009
When I look for a new catalytic converter for this car I see some say FRONT with a picture of the manifold and converter and other sites it is listed without front being mentioned but the picture is of a long exhaust with no manifold. Does this car have more than 1 converter? I need my emissions inspection but it failed because of a bad converter and I want to be sure I order what I need.

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Popular Answer
On the 4cylinder Toyota Solara has a front catalytic converter that is part of the tubular header exhaust manifold, (covered by a heatshield) the second catalytic is located just under the center of the front seats. Has your car got a "Check Engine light on", or have you been told your car has failed its emissions test because NOx, CO, or HC readings were high?
A lazy or failed Oxygen Sensor/Air Fuel Ratio sensor can lead to a code for a below efficiency catalytic converter. The vehicle's computer uses both Oxygen Sensor/Air Fuel Ratio to monitor the efficiency of the catalytic converter. Some cars only monitor the front catalytic converter, but if the rear O2 sensor is located behind the rear catalytic converter replacing only one catalytic converter may lower your emissions but result in having to change the other catalytic converter in the very near future.
Not all catalytic converter are equal. Many after market catalytic converter are much smaller than the original equipment catalytic converter and may only marginally keep off the Check Engine light. This is particularly true with newer cars!
on January 23, 2009
The check engine light was on so I replaced the oxygen sensor and it went out but then days later it came back on so I checked the computer again and then it said converter so I reset it hoping for it being a fluke, it didn't come back on but failed the emissions test and in turn the state turned my light back on so its looking like it may be in my best interest to replace both but I am getting the paperwork to see if it pinpoints which one it is but I am afraid to only replace one just to have the other converter fail later, any thoughts?

on January 23, 2009
Thanks, I replaced the sensor at the converter under the car about 2 months ago but not the one by the manifold so I will replace it next, I was told PA will give me a waiver for 1 year if I spend over $150 trying to fix the emissions with no success and that sensor by the manifold I think is over that by itself. At least if that does not cure it I have a year to get the converters replaced.


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