How to fix secondary air injection system is incorrect for 1997 ford taurus code number p0411?
I got this code because the pipe that connects to the exhaust maniford broke. The secondary air was not being forced into the exhaust stream so the O2 sensors were not seeing the right flow. This was accompanied by louder than normal exhaust noise. While I llok for a replacement pipe, I covered the fitting on the exhaust manifold with a 1/2″ flare cap.
