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danomano · 11-09-2010, 11:14 PM

Think I got it fixed after replace down stream O2 sensor and still get code and having the cats checked I did this to fix it.

I installed two 18mm no foul spark plug holders. One set I drilled out to accept the O2 sensor then screwed that into the stock one. After that I installed back into the exhaust and have not had an issue with it for two weeks. When before it would happen again after a day. Part number 42009 at autozone in the HELP section.

11-09-2010, 11:14 PM	#8
danomano Registered User Join Date: Dec 2007 Location: Austin,Texas Posts: 146	Re: Codes P0420 and p0430 Think I got it fixed after replace down stream O2 sensor and still get code and having the cats checked I did this to fix it. I installed two 18mm no foul spark plug holders. One set I drilled out to accept the O2 sensor then screwed that into the stock one. After that I installed back into the exhaust and have not had an issue with it for two weeks. When before it would happen again after a day. Part number 42009 at autozone in the HELP section.