Your converter is clogged and needs replacing.
Many of the compounds that make your engine oil work better on the INSIDE of the engine are also "poisonous" to your catalytic converter as your engine starts to use oil. The nice thing about catalytic converters, they burn unused hydrocarbons that come out the exhaust. You may not KNOW that your engine is burning oil until the catalytic converter gives out or even gets plugged up. Watch the oil level in the crankcase. If it drops with no evidence of leaking, it's burning and your catalytic converter will die.
Either the converter is partially clogged and needs replacing or you have a miss in the engine which is dumping raw fuel into the converter where it is being burned.
Have catalytic converter checked.
catalytic converter,resonator,muffler and oxygen sensor
bits of the catacomb that makes up your coverter have fallin losse. if it sound like there is dirt in it that that's the case. The catalytic converter needs replaced.
your cat converter burns unburn gass sent out of the truck in the converter then uses it in the engine it saves you gass and makes your truck not smell like its from the 40's Also it is likely the check engine light will come on and stay on. It is also illegal to remove the cat.
The ideal exhaust has no unburned gas in it. Since this hardly happens, a system to clean up air pollution was created. On the exhaust stroke of your engine, unburned fuel is forced out of your cylinder by the piston. That unburned fuel then makes it's way to the catalytic* converter. The catalytic converter basically gets hot to burn your unburned fuel and puts out the combustionally correct gasses. It is possible that your catalytic converter is the reason your van is spit and sputtering, but there are also many other reasons this could occur such as: timing vacuum fuel pressure air spark Signs that it could be your catalytic converter include: abnormally loud converter abnormally shaky converter hope this is somewhat helpful
An engine misfire has been detected ( drive in a moderate fashion - no heavy acceleration / decelleration ) and have the problem repaired as soon as possible to avoid damaging the catalytic converter
Check your catalytic converter.
Take your foot off the brake You may have either a misfire or a plugged catalytic converter. Is the check engine light on or flashing? Does it sputter or is there a loud throaty noise?
yes and its illegal if your car goes through emissions
It measures the health of the converter it is also used for fuel trim adjustment on some veh makes like most dodge jeep and Chrysler products