Quote:
Originally Posted by mejim707
1. ~200k: Cat codes of death! P0420 P0430. Solved with spark plug non-foulers. Easy job, and saved $3195. You'll need at least 1.5" non-foulers. What you'll find at the local stores will not have the depth you'll need, even if you drill. Get them on Amazon.
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Huh.
How come new cars dont need that? Somehow the car got to 200k without needing it....all of a sufdden the O2 sensor bung didnt shorten.
(and I dont think it is a
spark plug anti-fouler...
)
Ever think that there is something going on with your air-fuel ratio, that is choking up the cats and giving that code???
Or are you a 'I just fix CELs, dont dig deeper than that' kind of guy?
PS post your long and short term fuel trims,bet the car is running rich- not rich enough for a code, but rich enough to foul the cats