Has 39,043 miles. Check engine light came on last week. Code set was P0401 EGR Valve Insuff. air flow, also code P0101 was pending. Reset and P0401 keeps coming back. My question is it the EGR Valve that needs replacing or the EGR air valve that is the problem? or both?This is my 1st time posting here.I want to have a idea what the problem might be before I take it in for repair.If Vin # is needed I will email.

 

the egr and valve are one