Anyone ever replace a MCC?
I have a check engine light stating that Bank 2 Catalytic Converter not at peak efficiency. The light has been on for a while...and just recently I lost about 30-50% power. If I rev up the engine while parked, it will sound ok until 4000+RPMs. At which point it starts to rev up and down by itself.
I replaced the Sensor 2 Bank 2 HO2S last fall when it went out. Shortly after is when I got the new error code talking about Catalytic Converter not at peak efficiency (bank 2).
My assumption is that the catalytic is pretty clogged up.
I'm curious if anyone has bought any aftermarket MCCs? I'm thinking about getting this one: link
Any advice would be appreciated!