2000 GP SE dtc 0410 help

hey guys could you tell me how to fix the dtc code 0410. I have already replaced the front Check Valve for the air pump. I do live in new york state but the car came from california. the light comes on, i erase it, then a couple of days to 2 weeks later it come back.'

2000 Grand Pric SE
140,000
3.1 motor
4T65/E auto trans.

sounds like you may have an issue with the AIR pump itself. Due to the fact that it is mounted in the left front fenderwell area, they pick up a lot of salty slush in the winter and eventually fail due to this fact.