2002 Toyota Sienna 229,500 miles, California Cat smog setup. Been trying for 6 months to get the catalytic monitor to set.
OBD Codes = 0. Non-related to emissions or anything else.
Went online and found the official Toyota drive cycle patterns. One that I'm pretty sure is for my car and the other one that may be for my car, so I did both and have repeated them at least three different times in different weeks and months. I actually did more, but I would swear in court to three.
In July and two weeks ago treated the fuel with Cataclean strictly following the instructions. And of course there's been a lot of mixed long and short driving under freeway or service street conditions since then.
I even went on YouTube and tried different suggested "tricks" from the sages there that they swear will force your catalytic monitor to set, but that did not work either.
I have no particular odd sounds coming from my engine or from the exhaust and the exhaust smoke doesn't look any different than from over the last 10 years I've had the car. I use Castrol high mileage oil and try to change the oil every ~5,000 miles.
My spark plugs are Denso iradium long lifes with 26,000 miles on them. I checked the even cylinder front ones and based on pictures of what decent plugs should look like they seem to have no particular wear or fouling on them.
The only thing wrong with the system is my Evap is kind of shot. I do not get the whoosh sound when I undo the fuel cap and of course that monitor is not set. But in California that doesn't matter.
Sorry this is so long, but I tried to anticipate any questions somebody might have. Now I'm looking for any thought as to why it may not be setting and suggestions to get it to.
OBD Codes = 0. Non-related to emissions or anything else.
Went online and found the official Toyota drive cycle patterns. One that I'm pretty sure is for my car and the other one that may be for my car, so I did both and have repeated them at least three different times in different weeks and months. I actually did more, but I would swear in court to three.
In July and two weeks ago treated the fuel with Cataclean strictly following the instructions. And of course there's been a lot of mixed long and short driving under freeway or service street conditions since then.
I even went on YouTube and tried different suggested "tricks" from the sages there that they swear will force your catalytic monitor to set, but that did not work either.
I have no particular odd sounds coming from my engine or from the exhaust and the exhaust smoke doesn't look any different than from over the last 10 years I've had the car. I use Castrol high mileage oil and try to change the oil every ~5,000 miles.
My spark plugs are Denso iradium long lifes with 26,000 miles on them. I checked the even cylinder front ones and based on pictures of what decent plugs should look like they seem to have no particular wear or fouling on them.
The only thing wrong with the system is my Evap is kind of shot. I do not get the whoosh sound when I undo the fuel cap and of course that monitor is not set. But in California that doesn't matter.
Sorry this is so long, but I tried to anticipate any questions somebody might have. Now I'm looking for any thought as to why it may not be setting and suggestions to get it to.