buckshot87

The code gives me incorrect flow detected in secondary air system. Has anyone dealt with this one before or know where to start?

LCFRF150

To me, this makes me think of the EGR stuff. I think on these trucks, the system is called the AIR system or Air Injection Reactor system. It is the same principal. I would check your AIR or EGR pump, check the little hose from your 1st cat converter to make sure it isnt broken and check your PVC stuff as well. Good Luck!!

buckshot87

looks like it was a broken vacuum line, its replaced now and i've reset the computer so we'll have to wait and see if the CEL comes back on.