AudiBoyK

(2010 Audi A5 3.2) I have a GM secondary air injection pump on my vehicle, specifically made for Impalas.. how? Idk? But i purchased the car with it. Check engine light on for this reason.. I will be replacing with correct pump this next week, but I’m wondering how many hoses are connected to pump? I currently have one hose plugged to pump but seems as if it’s suppose to be 2...Pump is not running. Are there 2 hoses or one?