Front Catalytic Convertor Replacement on 2011 Honda Pilot

[@adventureoutdoors3005]

I suppose as much as the newer vehicles are packed in under the hood “sequencing” removal is becoming pretty critical. Good thoughts!

[@overpricedsundown]

If you ever unsure which bank the cat is. Unplug one of the 02 sensors on the cat and check for a code it will indicate which bank the sensor is on

[@ericscamping]

Thanks!

[@claussfrei7053]

So you replaced the wrong cat and the issue was fixed?

[@ericscamping]

Haha. Yes the light went off. If you’re looking at this issue and trying to solve it, I think I would just simply start with your oxygen sensors. If you’re getting a reading on one of the banks, change the oxygen sensor to that bank. This is how Honda approaches the issue. My opinion would be just change the oxygen sensor and see what happens.

[@kurtz2718]

How muh was the cat converter cost? Was it original cermaic cat or cheaper metal cat?

[@ericscamping]

@@kurtz2718I got it on rock auto. I would check current pricing. Prices are up.

[@topflightmechanic8692]

Thank you

[@ericscamping]

Everything matched up. There were no exhaust leaks and no different placement for the oxygen sensor. Everything looked OEM.

[@cherrydrivereviews8930]

this is unrelated but how often did you change your timing belt? I got 97k miles on my 2011 Honda Pilot right now and want to squeeze a little more time in before changing it.

[@ericscamping]

I believe the service interval is 100k. I just did mine when I got it.

[@Davidh741]

Eric millions of dollars wore spend steadying what colour is best for that check engine light. I been through 4 years was and nothing brings fear to me like check engine light

[@ericscamping]

I hate the thing being on LOL.

[@wilmarbarrick3194]

Bank 1 is the bank that contains cylinder #1. That's the firewall side on a j35.

[@ericscamping]

P0420 is listed as radiator side is some forums and firewall side in others. Light went off after three starts and has stayed off? P0430 is bank 2.

[@ericscamping]

I will research from manual and correct if I find in print. Weird the light went off if your right. I never cleared code.

[@dxxxm231]

You did the wrong bank😂. Bank 1 is 100% firewall side. I worked as an Acura tech for over a decade.

[@ericscamping]

@Drew Marshall crazy the light went off. If it comes back on I will do the firewall side. If you have a picture of the manual forward it to me. [e-mail].

[@dxxxm231]

All I ever do is google an image of “firing order” if I’m unsure. Bank 1 is always the bank cylinder 1 is on. Also it’s going to take a while for the light to come back on, there’s a lot of parameters that need to be met to run the monitors for catalyst.

[@johnmitchell8925]

Very well done Im gonna bring my bucket of soapy water and give that engine bay a bath 🤣

[@ericscamping]

Don’t wet you electronics.

[@user-pr8vt8xv4m]

How many miles are on your pilot?

[@ericscamping]

175K

[@itzviru]

I changed and cleaned up erg. Put 3 cat deletes on and im gonna take it on some long drives before I put new cats on

[@ericscamping]

I would like to know how that turns out. Are you trying to clean it out?

[@ericscamping]

Are you trying to clean it out before you put on the new cats?

[@joshuabrose]

Thanks for the great info! Couple questions for ya: 1. Was you replacement from Rock Auto the AP / EASTERN 641334? 2. Did the replacement job require any other hardware/parts other than what was included? Thanks!

[@ericscamping]

All the hardware is included. Which code did you pull?

[@joshuabrose]

@@ericscamping Thanks! P0430 (bank 2) which I have found to be the front (radiator) side of the engine block from my research

[@ericscamping]

I think that is right. When I chose mine, I just made sure that the rock auto label was for radiator side.

[@ericscamping]

Just found my receipt. AP / EASTERN EA 40923.

[@Amopower]

@@ericscamping so that part fit perfectly, no issues with the oxygen sensor holes pointing in slightly wrong directions ?

[@AbelCorona-ht6jf]

Did you have a gasket at the bottom of the cat where it connects to the exhaust? When I pulled mine off I didn’t see one.

[@ericscamping]

Yes. It may have deteriorated or is stuck to one of the surfaces. Make sure the surfaces are clean before you put on another one.

[@lambition]

It will be stuck in to groove on the Y pipe. You will have to dig it out.

[@josepha1746]

Have you installed an SVCM?

[@ericscamping]

No. I currently do not have any plans to do so. I have considered the purpose of it and when I need power, I just push my accelerator and Ecomode shuts off. I have been selective about changing things that effect my ECU.

[@johnmitchell8925]

how many miles on your pilot

[@ericscamping]

185211

[@Davidh741]

Eric can you do a video of your roof rack setup as of now I can see you made few changes thanks

[@ericscamping]

Have you seen the videos making it?

[@Davidh741]

@@ericscampingyes but to me looks different then making off did you paint it ?

[@ericscamping]

@@Davidh741 Nope just installed as it came. It came black. I did paint the superstrut black.

[@ericscamping]

kzbin.info/www/bejne/lX7cYqiHgJuef8U at 9:00

[@raymelvinchan]

nice under engine splash shield where did you get it? thanks

[@ericscamping]

No Lo Design skid plate.

[@richardk1499]

That job is tougher than I could do. Did it go back together ok?

[@ericscamping]

Everything went back together. Double checked the cooling fan connections twice LOL.

[@davidwalker8554]

Bank one is in the rear bank2 is in the front the motor is facing to the right side

[@ericscamping]

I think your right. 1000+ mi later bank 1 is still not causing check engine light after changing bank 2 🤪

[@ericscamping]

Can you tell by response I am still coping with the fact I did the wrong one? LOL. Why the check engine light has stayed off is beyond me.

[@lincmerc1581]

​​​​​​​@@ericscampinggot a bank 2 code after the bank 1 was replaced. Since the mechanic had also replaced two 02 sensors and did not mention anything about the other cat being bad, I ran a bottle of Cataclean through a tank of gas. Code went away and has not returned. 2010 Pilot 239k miles. Btw, when I called him about the code he did not seem concerned at all. He would have just cleared the code.

[@ericscamping]

@@lincmerc1581 interesting. I may try the cataclean if it comes back. Nothing yet.

[@lincmerc1581]

@@ericscamping Have you disabled the vcm?

[@bryantcash9538]

Did the p0430 code ever came back?

[@ericscamping]

No. But ypu should have dealership rule out 02 sensor vs Cat

[@bimshird74]

What is the part number for the catalytic converters

[@ericscamping]

I would go on rockauto.com and plug in your year and trim and come up with the exact part number. you can likely rely on their part number on many platforms.

[@ezraestrada4992]

How much is the cost of your new catalytic converter?

[@ericscamping]

I would check multiple places. Rock Auto, Amazon, and your local parts store. There is a wide range and a little work to hunt for a good price.

[@heartforgodministry]

What is the Part number for bank one Catalytic converter

[@ericscamping]

Make sure you check O2 sensor function before you do this. General code readers are less reliable. I dont want to steer you wrong: I would go to rock auto and look through there products and each part number by brand… no one single part number unless you are doing Honda OEM.

[@lambition]

@@ericscamping It is not code reader that is less reliable. Code reader only reads code from ECM. Higher end scanner can read O2 sensor voltage and by graphing it you can tell if CAT is bad or not. It should have flat or almost flat line. If voltage is going up and down, that means CAT is not working. ECM commands engine to keep switching between lean and rich during idle and this is what causes O2 sensor voltage to go up and down. If CAT is working, this gets smooth out from lack of oxygen.

[@BHilinsky]

Is this same exhaust as 2008?

[@ericscamping]

No. I believe 2008 in first generation.

[@jonl8582]

Too much work for me!