Catalytic Converter Replacements

scorro1 · 01-02-2013, 01:24 PM

All,

I have a 2003 MDX that is currently throwing two codes, p0240 and p0430.

The dealer mentioned that both my catalytic converters have gone bad and will need replacing for the MDX to pass inspection.

I looked at OEMAcuraParts at this list and found one converter.

2 18160-RCA-A00 CONVERTER1 1 $332.94 $246.38

I was told that two converters need replacing. Would I purchase two of these or am I missing something.

scorro1 · 01-02-2013, 03:46 PM

after more research they want to replace all the o2 sensors and catalytic's. I would assume that everything would not fail at once. Perhaps replacing the four o2 sensors first will be less expensive.

getyourmindrite · 01-02-2013, 05:24 PM

Same problem here, I have a 2004, but only the back one is bad, so thanks for posting this question, I hope to DIY Since the dealership wants $750

or I may just go with Pre Cat Deletes.

omnuts · 01-02-2013, 06:29 PM

^^I think that you referenced the front converter, you will also need the rear primary one, look CONVERTER, RR. PRIMARY for 2003 ACURA MDX|18290-RCA-L00. I recently ordered this for a friend of mine.

scorro1 · 01-02-2013, 08:00 PM

Thanks for the response. Turns out the light went out. Seems that the temperature activates the sensor.

Should I look out for any further issues? Is there an easy way to find the culprit.

omnuts · 01-03-2013, 06:18 AM

If the light comes back on and the same code, then most likely the converter is going bad

scorro1 · 01-03-2013, 09:24 AM

The codes were p0420 and p0430. Not 240.

01-02-2013, 01:24 PM	#1 (permalink)
scorro1 Registered User Join Date: Jan 2008 Location: Nuclear Power Plant, New York Posts: 142	Catalytic Converter Replacements All, I have a 2003 MDX that is currently throwing two codes, p0240 and p0430. The dealer mentioned that both my catalytic converters have gone bad and will need replacing for the MDX to pass inspection. I looked at OEMAcuraParts at this list and found one converter. 2 18160-RCA-A00 CONVERTER1 1 $332.94 $246.38 I was told that two converters need replacing. Would I purchase two of these or am I missing something. __________________ 2003 MDX Base Silver 142K Miles{ 235/65R17 Bridgestone Dueler H/L Alenza, 2004+ Headlights with H9 Bulb Conversion, Fog Lights equipped with 9012 Bulb Conversion iPOD Aux hookup to Stock Radio, Trunk Pet Net} 1991 Acura NSX Silver 31K Miles{ Escort 8500 X50, K&N Intake }

01-02-2013, 03:46 PM	#2 (permalink)
scorro1 Registered User Join Date: Jan 2008 Location: Nuclear Power Plant, New York Posts: 142	after more research they want to replace all the o2 sensors and catalytic's. I would assume that everything would not fail at once. Perhaps replacing the four o2 sensors first will be less expensive. __________________ 2003 MDX Base Silver 142K Miles{ 235/65R17 Bridgestone Dueler H/L Alenza, 2004+ Headlights with H9 Bulb Conversion, Fog Lights equipped with 9012 Bulb Conversion iPOD Aux hookup to Stock Radio, Trunk Pet Net} 1991 Acura NSX Silver 31K Miles{ Escort 8500 X50, K&N Intake }

01-02-2013, 05:24 PM	#3 (permalink)
getyourmindrite Registered User Join Date: Jun 2011 Location: San Marcos, CA. Bakersfield, CA. Posts: 19	Same problem here, I have a 2004, but only the back one is bad, so thanks for posting this question, I hope to DIY Since the dealership wants $750 or I may just go with Pre Cat Deletes. __________________ "Do or do not there is no try"-Yoda- Master Jedi! 04' Acura MDX (Maxine) Silver 07' Honda Ridgeline (Ridgina) Silver 01' Honda RC51 02' Suzuki TLR1000 totaled

01-02-2013, 06:29 PM	#4 (permalink)
omnuts Registered User Join Date: Sep 2012 Location: LI, NY Posts: 101	^^I think that you referenced the front converter, you will also need the rear primary one, look CONVERTER, RR. PRIMARY for 2003 ACURA MDX\|18290-RCA-L00. I recently ordered this for a friend of mine. __________________ 2012 MDX-Tech - Grigio/Ebony 2006 TL - WDP/Ebony

01-02-2013, 08:00 PM	#5 (permalink)
scorro1 Registered User Join Date: Jan 2008 Location: Nuclear Power Plant, New York Posts: 142	Thanks for the response. Turns out the light went out. Seems that the temperature activates the sensor. Should I look out for any further issues? Is there an easy way to find the culprit. __________________ 2003 MDX Base Silver 142K Miles{ 235/65R17 Bridgestone Dueler H/L Alenza, 2004+ Headlights with H9 Bulb Conversion, Fog Lights equipped with 9012 Bulb Conversion iPOD Aux hookup to Stock Radio, Trunk Pet Net} 1991 Acura NSX Silver 31K Miles{ Escort 8500 X50, K&N Intake }

01-03-2013, 06:18 AM	#6 (permalink)
omnuts Registered User Join Date: Sep 2012 Location: LI, NY Posts: 101	If the light comes back on and the same code, then most likely the converter is going bad __________________ 2012 MDX-Tech - Grigio/Ebony 2006 TL - WDP/Ebony

01-03-2013, 09:24 AM	#7 (permalink)
scorro1 Registered User Join Date: Jan 2008 Location: Nuclear Power Plant, New York Posts: 142	The codes were p0420 and p0430. Not 240. __________________ 2003 MDX Base Silver 142K Miles{ 235/65R17 Bridgestone Dueler H/L Alenza, 2004+ Headlights with H9 Bulb Conversion, Fog Lights equipped with 9012 Bulb Conversion iPOD Aux hookup to Stock Radio, Trunk Pet Net} 1991 Acura NSX Silver 31K Miles{ Escort 8500 X50, K&N Intake }

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