Ok not your standard p1409 pop. I had a hose come off the main vac and this code popped after I fixed the leak. No difference in idle or drivability. so it's not running rough. And thoughts vacuum lines are good. I've heard it could be the Dpfe but that and both vac lines were replaced in January of 2011.

 

Bump...Anyone?

 

Did u check the dpfe lines good ? Mine looked fine until I took them off n noticed they were all tore up pull them off n expect them

 

They are new. Just replaced them

 

Did you install a motorcraft dpfe? Cause from what ive heard around here, the aftermarket ones go pretty quickly

 

Yeah bought it from the dealership.