an idiot u just proved it yourself lmfao The catalytic converter consists of small amounts of precious metal deposited on a ceramic substrate. The failure mode is chemical ie poisoning the precious metal with contminants like lead in gas or mechanical, breaking up the ceramic substrate. Plugging is mechanical failure (the ceramic substrate gets broken up into small fine pieces)
normal thermal cycling will eventually cause the ceramic to start to crumble. Cats are designed to last 100k miles minimum but if the car is driven only on short trips (every trip thermal cycles the cat) then early failure could result.
Second, thermal shock will cause the ceramic to break up. Having the car (and cat) up to operating temperature and driving thru deep water for a long enough period will cause a thermal shock that could cause problems.
Unlike the earlier two-way converters that could perform their job relatively efficiently with a lean fuel mixture, the catalyst inside a three-way converter that reduces NOX requires a rich fuel mixture. But a rich fuel mixture increases CO levels in the exhaust. So to reduce all three pollutants (HC, CO and NOX), a three-way converter requires a fuel mixture that constantly changes or flip flops back and forth from rich to lean. This, in turn, requires feedback carburetion or electronic fuel injection, plus an oxygen sensor in the exhaust to keep tabs on what?s happening with the fuel mixture.
Converters may also fail if they get too hot. This can be caused by unburned fuel in the exhaust. Contributing factors include a rich fuel mixture, ignition misfire (a fouled spark plug or bad plug wire) or a burned exhaust valve that leaks compression. Fuel in the exhaust has the same effect as dumping gasoline on a bed of glowing embers. Things get real hot real fast. If the converter?s temperature climbs high enough, it can melt the ceramic substrate that supports the catalyst causing a partial or complete blockage inside. This increases backpressure, preventing the engine from exhaling and robbing it of power. Fuel consumption may shoot up and the engine may feel sluggish at higher speeds. Or, if the converter is completely plugged, the engine may stall after starting and not restart.
lmfao now lets see restrited exhaust loaded engine hmmmmmmmmmmmmmmmmmmmmmmmmmm i bet you get a rich condition hmmmmmmmmmmmmmmmmm coverter makes heat plugs more engine is more loaded condition gets richer more heat
hey pick nose
yor failed yeat too
no canada for you lmfao
hurc ast