p1870 code for check engine

I have recently had this code show up when checked following the check engine light on a 2000 sunfire 2.2L Engine. Has anyone else dealt with this code?

Oh ya mate......like a Blowie !!!
I see the code all the time...first thing I tell the blotes is to change the tranny fluid and filter. Normally, I never see them again unless I see them at the Boozer. After that.....make a Roo and head for the tranny shop and tell them Donk sent ya.

Cheers.. Mate....JzJzz and the Man from Down under !