whelp i changed my catalytic converter today. replaced all o2 sensors ( 4 ) and entire converter setup. started it up let it run a little and checked exhaust i see white smoke doesn't smell sweet and it's not a lot just steady.
it actually smells a LOT better now then it did with the other converter though which just straight up smelled like a faint gas smell. car been sitting for idk how long i think 2 weeks maybe now. drove it only for 1 day and that was it.
it still has the rough idle. it's quieter now on start up though. got to check on air leaks or what not tomorrow. my guess though is that engine light will come on again. cylinder 1 misfire code, maybe.. clogged injectors. i added some of that injector stuff to the fuel but i mean my tank was already full when i added it. gonna try run it down and add some more maybe. i can't really think of anything else why just the 1 would misfire i'd figure if cylinder was cracked there'd be an error code for that.