Re: po420 and po430
yes thats what the codes are, sorry i was a little tired when i first posted and just assumed everyone new what the codes where. Sorry it was my bad.
i have found out I have bad cats. Both rear o2s where crosscounting the same as the fronts, and they shouldnt, the job of the cats are to do away with any rich or what not mixtures and then the rear o2s should steady out and read a good mixture, well they were not.
After we do not have emissions testing I took the cats out and welded in pipe. I sold them at the scrap yard for 40 a piece, then spent 8 dollars and built my own o2 eliminators. Very simple to do, and the codes do not come on anymore.
Thanks for everyones help.
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