411 is a secondary air code issue. There is a pump that comes on in the mornings to pump air into the exhaust to further burn unburnt fuel.
You already replaced a mass air flow that was good. The hose was your issue. You need to find someone you can trust to help you. If you replace the pump, relay and valve and it does not work, then it is worth it to get a real diag from a trusted shop first.
Saturday, April 14th, 2012 AT 7:36 PM