Catalytic Converter de-carboning

redcast · 02-20-2008

My BMW won't pass california smog. If I inject water will the carbon released from the engine clog up the cat or clean it?

Dust · 02-20-2008

Are you sure that the cat is the problem?

redcast · 02-20-2008

Just purchased the " Beater" for my grandaughter with 208,000 miles on it. I'm assuming there's a carbon buildup in the engine and the cat. From what I've read on this forum so far Carbon can be flushed from the engine with positive effects on emissions. I was curious if that cleaning action continued thru the entire exaust system (the cat in particular) or does it have a clogging effect on a cat that has high mileage on it and presumably a carbon buildup as well.

02-20-2008	#1 (permalink)
redcast Water Injection Newb Year: 1991 Make: bmw Model: 535i Join Date: Feb 2008 Posts: 2	Catalytic Converter de-carboning My BMW won't pass california smog. If I inject water will the carbon released from the engine clog up the cat or clean it?

02-20-2008	#2 (permalink)
Dust Alcohol Holic Year: 1999 Make: Daihatsu Model: Move Join Date: Mar 2007 Posts: 216	Re: Catalytic Converter de-carboning Are you sure that the cat is the problem?

02-20-2008	#3 (permalink)
redcast Water Injection Newb Year: 1991 Make: bmw Model: 535i Join Date: Feb 2008 Posts: 2	Re: Catalytic Converter de-carboning Just purchased the " Beater" for my grandaughter with 208,000 miles on it. I'm assuming there's a carbon buildup in the engine and the cat. From what I've read on this forum so far Carbon can be flushed from the engine with positive effects on emissions. I was curious if that cleaning action continued thru the entire exaust system (the cat in particular) or does it have a clogging effect on a cat that has high mileage on it and presumably a carbon buildup as well.