My 08 XC90 3.2 has check engine light on with codes P0420 and P0430. I'm trying to read live data on my obd2 scanner but I only have data from the downstream O2 sensors nothing from the upstream on both banks. So maybe I have faulty O2 sensors? Could be a wiring issue? Fuse or relay? If the sensors ...

I'm closing the thread as I finally have my a/c blowing cold air again. It was a defective solenoid that was replaced by the vendor
New readings @ 77°F and 59% humidity low=42 and high=190

The compressor is either not turning on or it is internally worn/damaged. The low side should drop to about 30 with compressor engaged on and high side will be about 2x ambient temp in F. so of its 80F -and compressor is running you would ecpect to see 30 low and 160 or higher on high side. I assum...

Hello everyone. I have a XC90 2008 3.2 with a/c issues, which is known by many here. The a/c will only start to get cold after a while. About a year ago it was taking about 2-3 minutes to get cold, now it's around 8-10 minutes. So I decided to replace the solenoid before gets really hot here in Sout...