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International Automotive Technicians Network
Re: ENGINE FAILURE CAUSED BY BAD/STOPPED UP CATALYTIC CONVERTER?
Posted to Technical Theory Forum on 5/29/2021

[...trimmed text...]

Not correct.

On close coupled cats ("catifolds") the reversion flow in the exhaust is enough to suck and loose material from a failing cat back into the cylinders. The converters with ceramic subst... Login to read more.