with a clogged cat. Yes.
However on the street about every car out there with and with out would not be noticable as far as power goes. your "seat of pants dyno" is not sensitive enough to measure the difference. But mother earth's ozone can: ) Be kind to our grand children and Never remove a cat unless to replace it. Its also illegal on pollution controlled vehicles, any made after 1975.
You lose power, engine can't breathe.
Rev. limiter?Plugged catalytic converter?
A defective catalytic converter can do that.
Could be, a plugged fuel filter, a damaged catalytic converter,
Yes, and you would probably have a check engine light on also.
Check the catalytic converter. They get plugged and cause the vehicle to lose power.
loss of power under a oad is a good indication of a clogged catalytic converter
Losing power is a lot of times due to a clogged catalytic converter, have that checked out.
A catalytic converter overheats due to an excess of unburned hydrocarbons reaching it through the exhaust stream for an extended period of time. This overworks the catalyst bed inside the converter, which then starts to become plugged, generating even more heat as it does. In short order, the converter will become a significant exhaust obstruction, causing the engine to overheat and lose power. Eventually, this will prevent the engine from running, due to the inability of the exhaust to escape, denying the engine the opportunity to "breathe"...
Dirty fuel filter, dirty air filter, bad catalytic converter, restricted exhaust, insufficient fuel pressure.
Plugged fuel filter? Plugged air filter? Plugged catalytic converter?
Yes, it sure can.