I recently changed the headgasket and timing belt (amongst other "while you're in theres") on my 2005 volvo s40 t5 awd (Car blew a headgasket due to coolant loss).

Regular Autozone OBD2 reader gives me the following generic codes:

-P0243 Turbo Wastegate Solenoid A (Bad MAF? Bad TCV? Wet K&N Cone Filter ruining MAF?)
-P0017 Crankshaft Position- Camshaft Position Correlation - Bank 1 Sensor B (Bad Exhaust Side Camshaft Sensor? Tooth off timing?)

-The car feels off. Massive loss of power (limp mode from bad TCV?). I don't feel any boost. Car takes forever to climb RPMs.

-Wet Compression Test shows all cylinders at 140-145.
-Timing seems to be as perfect as it can be. All marks align, will upload pictures when I can.
-There is continuity in both Camshaft Sensors.


Things I want to test/replace. Please advise best you know.

How can I test?
1) TCV
2) Camshaft Sensors (in case I did it wrong)
3) MAF
4) If Timing is correct

Should I replace?
1) TCV with a heavy duty IPD TCV (car is stock boost, for now, one day maybe more)
2) Camshaft Sensor (Exhaust)
3) MAF
4) Vacuum Lines from TCV/others

I did NOT
1) Have these error codes before the overheating incident/ replacement
2) Have this little power before replacement
3) Visit an Official Volvo dealer to get specific codes

Thank you for any input, I'm a bit stuck and would love to hear it running like it used to.