My jeep is throwing the P0432 code.
If my CC is going bad, then wouldn't it be worth taking the chance to see whether a cleaner would work (or maybe buy you a little more time) before spending a lot of money, replacing the CC?
Worse case scenario, the cleaner doesn't work.
On the other hand, if the cleaner DOES work, you just saved a lot of dough.
Seems to make sense.
After so many years, your CC gets clogged.
Then, someone makes a "cleaner" that supposedly will unclog your CC.
What do you think?
Just another "snake oil" gimmick?
Has anyone tried one of these cleaners and had it actually do some good?
I had that code thrown, and it was just a bad o2 sensor. This was about 4 months ago and a code hasn't been thrown since I replaced it. Definitely a lot cheaper than replacing the cat.
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I had that code and this is what my cat looked like.
And this is what it is supposed to look like.
You may want to drop them down and just check because it could have been dislodged and fallen down into the pipe like mine. I replaced all 3 cats because some parts of the pre cat had broken off and clogged the main cat as well.
2003 TJ, 3" Teraflex Lift, 1" Body Lift, 33" BFG All Terrain tires, Ford 8.8, ZJ Tie Rod, Front & Rear ARB, Rancho RS9000XL shocks
It still ran, just really bogged down on the highway and and higher rpms.
That's why I question whether (in my case) the problem is my converter OR an O2 sensor.
I don't have any issues driving on the highway. My TJ just idles a little rough, but that's all (so far). Of course, if it IS the catalytic converter, then I guess it could begin to give me problems down the road (literally & figuratively).
P0432 is the Rear DOWNSTREAM sensor! NOT UPSTREAM!! I had the same issue as ColoradoTJ, the webbing material broke apart and clogged the hole, thus tripping the code. Instead of dropping $70 on a new sensor, dropw down the exhaust system, its really easy only 6 bolts, and look inside the mini cats. You should see webbing material, like the picture above, if not then you need a new system. If everything looks good then buy the sensor.
I would disagree. The downstream simply checks the value versus the upstream one. If it detects an anomaly it throws the code. Therefore I guess it could be upstream (if it is bad it will return no value and thus the downstream will be different), downstream or the cats.
Either way, I can report from my experience of the Engine code being read by the shop, them telling me to replace the upstream sensor, which I did, and not having a problem since.