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It has been about a year since I uploaded my original video about my 1999 Toyota Tacoma that was throwing a P0420 OBDII code. That code means that the computer believes the catalytic converter is not working properly.
So, after replacing the seals at both ends of the catalytic converter last year, the code still came back again. It stayed in the computer for about the past year and never cleared itself. The check engine or MIL light stayed on the entire time.
So, I needed to go get a new inspection sticker about a month ago and I decided to clear the computer of any codes and see if I could run the truck through its "drive cycle" and then go get an inspection sticker before the light came back on.
It worked, but the craziest thing is that was about a month ago and the P0420 code never came back and the MIL light has never come back on. So, I thought I would update everyone who had been asking on that latest development. I think it's important because clearing the code and running the drive cycle and quickly going to get a sticker saved me $1000 (parts only). So, even if it doesn't stay off, this is a good way to save precious dollars on a truck that's already 15 years old.
It's a bonus that the truck apparently has decided to give up telling me to replace the catalytic converter--I won't argue with that! :-)
Please feel free to leave comments and good luck with your Toyota Tacoma if you are suffering the same problem!