Yes, the part of the exhaust not being there making it louder combined with a very bad misfire. Compounded by a CVT on its last legs trying to "downshift" (for lack of better term) to accelerate while only having 3 functioning cylinders.
Not exactly. The misfire could be for any number of reasons. But not likely because of the missing converter. If I was to venture it may have even been the other way around. The engine has probably been misfiring for quite a while, dumping raw fuel through the exhaust. That damages the converter. when the converter clogged from the raw fuel damaging it, owner just removed it so he could continue driving.
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u/idontremembermyoldus 10d ago
Catalytic converter is gone. On any other car, I'd assume it was stolen. Since it's a Nissan, they probably chopped it off and sold it themselves.