Have the OBD codes, how do I fix the problem?

Check the resistances on the CTS Hot and Cold -Check the oxygen sensor voltages

Just to add to this one for the code P0133 you need to replace the o2 sensor in the exhaust manifold. For the p0128 I would probably just replace the coolant temp sensor they have a high failure rate on those cars and there only like 10 also inspect the connector if the inside of the connector terminals is green or blue instead of silver then you will have to replace thr connector also.I would also replace the thermostat that should take car of the code p0128.