Join Date: Aug 2010
Location: Kansas City, KS, USA
Re: Catalytic Convertor Failure
Aside from the fact that a healthy catalyst results in only a miniscule loss (if any) in engine power at full throttle, there seems to be a disconnect between the removal of the catalyst and modern thinking on safety and heath. The "old" gasoline contained lead compounds to prevent detonation, but since it could cause learning difficulties and poison the catalyst, the lead compound was replaced by compounds containing aromatic hydrocarbons such as benzene and toluene. These don't cause learning difficulties and don't poison the catalyst, but unburned aromatic hydrocarbons can cause damage to the human central nervous system and are carcinogenic in various degrees. Also in the products of combustion could be nitrous oxide, the largest contributor nowadays to the depletion of the ozone layer. The modern three-way catalyst takes care of carbon monoxide, a poisonous gas in itself, unburned hydrocarbons and nitrous oxide. Even though the engine will run without the catalyst, the disadvantages appear to outweigh any possible advantage. Let alone that it is illegal to remove the catalyst.
BMW MOA #140995
"And there is salvation in no one else, for there is no other name under heaven that has been given among men by which we must be saved."
Last edited by andres; May 12th, 2014 at 1:11 pm.