I have all these different codes popping up on my 2009 Jaguar XF super charged. It is straight piped. I can’t decide if I need to fix all of these things or if it’s just because one thing is messed up. Jag codes

P0620

P010B

P0174

B11DB

P0128

P050B

 

I'm sorry I don't have time to look up the codes but it is very often one thing that fails and then triggers sort of temporary downstream malfunctions or sensor readings out of range. Find and fix that one thing and the rest will be good. We have some sharp DIY'ers and actual techs who I'm sure will be along soon with more specific advice.

 

Without actually clearing and running a scan for current issues, I'll just give a quick explanation of each, this is very generalized.

P0620 - P0620-01 - Power generating issue, could be alternator/generator or battery or both.

P010B - Air flow B range issue, not within parameters

P0174 - Air leak upstream MAF/IAT, sensor bank 2 failure, circuit failure, O2 sensor failure pre/aft Catalyst converter

B11DB - Battery monitoring failure

P0128 - Thermostat temp cold, either stuck open or fans constantly running

P050B - Engine control module or ignition coil/ coil circuit faults

 

I would clear all the codes, run the car & see if any come back.

 

If you just got the car, get the battery and thermostat replaced with OEM parts. Then do a smoke test to find the vacuum leaks. Once all those are sealed, clean both MAF with CRC cleaner. Clear codes and do a few drive cycles before scanning again.

 

Not necessarily questioning your advice , just working out what you are saying.
to be clear, this would be after clearing current codes and seeing if they come back ( yes/no ??) . Also , why "OEM" battery specifically ? were you meaning OEM specification ? OEM brands are often the cheapest quote or they had a deal with the manufacturer, but yes I would buy a quality battery if I was going to buy a battery.

 

I don't bother clearing codes until having made a change of some kind, most of these communication errors won't go away unless the battery is replaced.

All parts are OEM spec, aren't they. Otherwise nobody would buy them.