Question about 2003 Toyota Corolla
If the code was (catalytic converter below threshhold) its more tlikely that you will not need to replaced the catalytic conv.but is a possiblity. First check your o2 sensors for proper function. These are electrical units in your exhaust that read your air/fuel ratio and are a lot more likely to malfunction.
Posted on Aug 19, 2010
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Posted on Jan 02, 2017
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