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  #16  
Old 07-14-2012, 11:37 AM
318lajohn 318lajohn is offline
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I took my 2003 Honda Accord EX V6 to yet another mechanic. It read the same code P0420. I read the link you sent. This mechanic says he's SURE it's the O2 sensor. So, I'm going to let him replace it and see if that works. If not, it's got to be the catalytic conv. Thank you.

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  #17  
Old 07-14-2012, 07:53 PM
D-JET D-JET is offline
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Make SURE he uses DENSO or OEM brand ONLY
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  #18  
Old 07-15-2012, 10:24 AM
318lajohn 318lajohn is offline
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Ok. Where can I purchase DENSO?

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  #19  
Old 07-15-2012, 03:26 PM
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Quote:
Originally Posted by 318lajohn View Post
Ok. Where can I purchase DENSO?

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Advance Auto should have it. Don't know about the others.
http://shop.advanceautoparts.com/web...ervlet/home___
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  #20  
Old 07-16-2012, 06:06 PM
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nehonda nehonda is offline
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Amazon had best Denso prices when I bought mine.
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  #21  
Old 07-16-2012, 08:48 PM
318lajohn 318lajohn is offline
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What about "BOSCH" brand? Or I may just go to the Honda dealership, buy the sensor, and let the mechanic put that one on.r

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  #22  
Old 07-17-2012, 06:42 PM
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I used Bosch on a 5th gen Accord with no issues. In replacing both front and rear it was plug and play (with the correct connector) no splicing. If you do end up getting a cat buy aftermarket...much cheaper. My Random Technology works just fine for less than 1/2 the price of an OE unit.
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  #23  
Old 07-18-2012, 08:47 AM
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frenzal frenzal is offline
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I installed an aftermarket catalytic converter on my 99 Civic and changed the rear O2 sensor for a Bosch. After 4 years, the Bosch sensor still work great. But the catalytic converter started to throw codes after about 1 1/2 year...

To fix the CEL, I added an extension to the O2 sensor...
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  #24  
Old 07-19-2012, 04:19 PM
318lajohn 318lajohn is offline
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Thanks for the info!

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  #25  
Old 07-28-2012, 02:42 PM
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mongo2k7 mongo2k7 is offline
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Not to jack the thread but I think I am having the same issue on my 07 Accord SE I4. I recently had the dealer do the oil change cause I wanted them to do the 27 point inspection after moving to south florida from new england. I know that my Honda should be ok, but I just wanted some reassurance.

After getting it back I noticed a hesitation when starting to accelerate and when sitting at red lights my idle is rough and at times almost stalls out. I got the CEL and brought it back to the dealer thinking it was something they did. The SM plugged into the DLC and said it was a bank 1 exhaust issue possibly the O2 sensor. Then proceeded to clear the CEL and didn't give me the code nor bothered to remember it Hoping the local auto parts store could recall it so I can fix it...no dice. I'm left with driving around like this until the CEL light comes on again. The only thing I noticed while changing to Akebono ProACT brakes was that the heat shield on the cat converter had rusted through on one corner and is giving me that annoying rattle upon startup.

THanks for the help.
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  #26  
Old 07-29-2012, 12:06 PM
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The CEL came on again and had it read.

I'll search the threads for P0171
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  #27  
Old 07-31-2012, 07:40 PM
D-JET D-JET is offline
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Quote:
Originally Posted by mongo2k7 View Post
The CEL came on again and had it read.

I'll search the threads for P0171
Try cleaning ur MAF sensor with MAF cleaner.
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