I have a 98 accord v6 code reads (po400) exaust gas recirculation flo malfuntion . Please tell me what part needs replacing, Thank you.
biff26
Apr 9, 2010, 10:41 PM
The most common cause for this code (as long as vacuum source to EGR valve and the EGR valve will open when vacuum is applied) is plugged or restricted EGR passages in the intake manifold.