Hey guys,
Having real trouble finding ANY mechanic that will look at my 2005 SRT-6 coupe.
So. after seeing a PO410 fault code I purchased an ebay secondary air pump (same Bosch part no. as the original)
but when I connected the power cable it started up and stayed engaged while the engine was/is NOT running
and would not stop after the engine was started up and then after a minute or so turned off.
Do y'all think this is a part defect or a computer problem?
My check engine light did go off, but obviously something's still up.
Many thanks!

NGP