Well, like it said, I have two codes that keep popping up PO452 (Emissions control pressure sensor low) and PO453 (Emissions control pressure sensor high). They used to come and go randomly, be off for a month pop up for a couple days, then go away, ect. ect. I think it is a sensor that is on the side of the evap. canister in the left rear quarterpanel. Has anyone else had these problems?? I'm just trying to figure out if the sensor is just f*cked or if the problem is elsewhere. I don't want to just start buying things I don't need. Any help would be nice, sorry for the novel.
TIA
CJ
