My original ECM went bad I think back in 2023. My local Indy Volvo mechanic replaced it with a re-manufactured Volvo ECM. That one lasted less than a year and it was under warranty, so they gave me a new re-man for no charge.

chrism-
No codes after running your 30 second test just now.

Also does the naturally aspirated 2.4L engine like mine have just 2 sensors?

Gentlemen, would a factory installed oxygen sensor or OEM be considered a Bosch one?

Hi again guys. Hope you had a great summer!
My older v70 with 228k miles on her gave me a couple of CEL's today. (P0420 & P0328)

P0420 after looking it up says it could be the CAT converter (Bank 1) or possibly a bad Mass Air Flow sensor.
Should I look into replacing the MAF sensor first? I am ...

So, you are the guy that keeps blinding me at night.

Just as a side bar, here is a seemingly nice LED conversion kit for the standard H7 halogen bulb. My only concern would be that my headlamp bulbs are always on even in the daytime and they would overheat.

https://ledlightstreet.com/products/h7-led-headlight-conversion-kit-1?_su_rec=w0ROL ...

scot850, no the pic is for an example only. Just wanted to show you the adjuster screws.

I think I figured out why the mechanic did not want to align my headlamp. The upper plastic hex is stripped. No six sides anymore.
I guess I can use some pliers to grab on to it rather than replacing the whole headlamp assy.