Hey everyone! We have three Volvo’s. 2008 XC70 and 2008/2012 XC90. Recently, my wife’s 90 (2012) has been having brake light issues. When the car is off, all three brake lights work. When you crank it, it’s working, then the moment it goes into reverse, only the 3rd (LED) light works and it says “Ch...

And fuel pressure seemed to be too high at startup. Like 72 psi.

Codes were 0172 and 0175. I also had a 0420 code for bank 2 only. I’m going to attempt to put a picture of the O2 sensors on here. They said the bank 2 rear was “slow to respond” but was running correctly once it warmed up.

Sorry for the delayed response everyone. So smoke test, nothing. Completely clear. Mileage is 142k. Replaced MAF, PCV, fuel pressure sensor on the rail (no way to check pressure on the rail), and that’s it. Lean conditions bank one and two.

Good morning from Georgia everyone. I currently have 3 Volvo’s all of them have the 3.2. My wife has a 2012. We have rich codes across both banks. Not just one. As far as I can tell, I’ve replaced every sensor known to man short of the O2 sensors. They both work fine except one (bank 2) is slow to w...