Year old member.. first post. '04 Coupe

Recently cleaned my throttle body. Yes it was stalling daily before at idle.. but haven't for a week. best $5 dollars I've spent... on the throttle cleaner

I noticed this hose coming from the firewall with no connection on the other end. A bit strange: check engine light used to be on before cleaning the throttle.. but no longer on.

Check out the picture .. please let me know. The car drives normal and again no more stalling!!