I will only address only one code, namely...P0420 on your code analyser at this time.
Note: The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. The downstream O2 sensor reading should be fairly steady. Typically the P0420 code triggers the Check Engine Light if the readings of the two sensors are similar. Is your check engine light on?
This is indicative of (among other things) a converter that is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.
Symptoms : The main symptom to the driver is the illumination of the MIL (malfunction indicator lamp). Check-engine-light. You will likely not notice any drivability problems, although there may be symptoms. For example, if the substance inside the catalytic converter is broken or failed, it may be restricting the exhaust which will result in a feeling of reduced power output from the vehicle.
Causes: A code P0420 may mean that one or more of the following has happened:
Leaded fuel was used where unleaded was called for
A damaged or failed oxygen sensor (HO2S)needs replacement. Even new ones can be defective although this is unlikely.
The Downstream oxygen sensor (HO2S)wiring was damaged at installation or was connected improperly
The engine coolant temperature sensor is not working properly. Is there proper coolant in the coolant reservior?
Damaged or leaking exhaust manifold / catalytic converter / muffler / exhaust pipe.
Do you hear any abnormal sounds under the hood, under the car,or at the back of the car?
Retarded spark timing
The oxygen sensors in front and behind the converter are reporting too similar of readings
Leaking fuel injector or high fuel pressure
Cylinder misfire
Oil contamination
Possible Solutions: Here are some suggested steps for troubleshooting a P0420 error code:
Check for exhaust leaks at the manifold, pipes, catalytic converter. Repair as required.
Use a scope to diagnose the oxygen sensor operation (Tip: The oxygen sensor in front of the catalytic converter normally has a fluctuating waveform. The waveform of the sensor behind the converter should be more steady).
Inspect the downstream heated oxygen sensor (HO2S), replace if necessary
Replace the catalytic converter
Overall probably the biggest mistake vehicles owners make when they have a P0420 code is to simply replace an oxygen sensor (H02S). It is important to do proper diagnosis so you're not wasting money replacing parts unnecessarily.
I strongly recommend that if you need to replace the catalytic converter that you replace it with an OEM unit. Second choice would be a high-quality replacement part. There are many stories in forums where folks replaced the cat with a cheaper aftermarket one, only to have the code return shortly thereafter. good luck.