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Car Forum / Honda Cars / August 2005Failing catalytic converter code
My check engine light has come on, showing a P0420 code. The most probable cause of this, I'm told, is a failing catalytic converter. No other codes show up. The car is 1998 Honda Accord with 133k. Does anyone disagree with the suggestion that I must install a new catalytic converter? If I must, should I install an OEM or would Midas do a good job also? > My check engine light has come on, showing a P0420 code. The most probable > cause of this, I'm told, is a failing catalytic converter. No other codes [quoted text clipped - 3 lines] > converter? If I must, should I install an OEM or would Midas do a good job > also? ---------------------- Did you run 'accord' and 'p0420' thru google and see if there's any ideas? I saw something about a recall, but you'd have to search for yourself. 'Curly' I am not eligible for the 8 year, 80k mile warranty for that. > > My check engine light has come on, showing a P0420 code. The most probable > > cause of this, I'm told, is a failing catalytic converter. No other codes [quoted text clipped - 11 lines] > > 'Curly' You have to see if the rear 02 sensor is doing it's job. Sometimes they get sluggish and start lying to the computer but don't set a code as bad. Other than that, the cat is a good bet.  SignatureStephen W. Hansen ASE Certified Master Automobile Technician ASE Undercar Specialist > My check engine light has come on, showing a P0420 code. The most > probable [quoted text clipped - 6 lines] > job > also? Catalytic converters are very reliable today. Any problem with it is usually the result and not the cause. The post converter oxygen sensor may be the one acting up. You can have the waveform inspected. Also, before jumping out and buying a new cat make sure your oxygen sensors are working properly and the engine is burning fuel effectively (tune up lately?) If you just replace the cat and not fix the source of the problem, the converter will get damaged again. > My check engine light has come on, showing a P0420 code. The most probable > cause of this, I'm told, is a failing catalytic converter. No other codes [quoted text clipped - 3 lines] > converter? If I must, should I install an OEM or would Midas do a good job > also? id make absolutely sure it isnt the 02 sensor first. if youve been using the correct gas, the cat should last longer than 133k miles. I cleared the code twice and it has not returned. Does everyone still think that I should test my O2 sensors? > My check engine light has come on, showing a P0420 code. The most probable > cause of this, I'm told, is a failing catalytic converter. No other codes [quoted text clipped - 3 lines] > converter? If I must, should I install an OEM or would Midas do a good job > also? |
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