Codes 0430 and 2099. I'm rich and lean. OBD also says FUELSYS2 CL_FAULT. Already replaced bank 2 o2 sensors and cat. Car hesitates and idle slightly bounces. Revs high to shift. Sometimes wants to stall if a hard stop. Don't know if this is related car previously told me massive vac leak brake booster. Replaced sensor and gasket. No more code for that....so far. Yesterday my air conditioning quit my car won't engage the air conditioner compressor. It is telling me to change oil soon. I have another 1000 miles before it is due. Could it be the PCU? Do I need to clean or replace injectors? I really want to like this car but it seems to have more problems that my 20 year old suburban.

 

A code reader is only so good and no more.
What is required here is a scan tool that will show fuel trim, oxygen sensor voltages , actually what is called "Data Stream". Those readings can be like a physician receiving a copy of one's blood work. If you know what to look for, then you can see what is out of spec.To keep throwing guesses and spending $$$ is not the better way to go.
If you can get a copy of the data stream info and post it here, we should be better able to offer useful suggestions.

There is a good possibility more than one problem may be involved.
What kind of maintenance has been recently performed and miles on the odometer, thanks.

 

I bought it an 180000 miles, I replaced the oil packs, plugs, throttle body, mass airflow censor, the intake manifold gasket, replaced bank 2 o2 sensors and cat. I was getting a funny code for a massive break booster vacuum leak and my AC compressor won't kick on as of yesterday.

 

You seem to be getting your share of problems.. Can we ask how long you have owned the car and what might the mileage have been when you acquired it?

 

Same here