hi
i have a honda prelude 2000 i have ck engine light on
P0401 Exhaust gas recirculation flow insufficient detected i erace it, but it comming back

can anyone help my
thenks

 

I culd help yu but teh language barriare is masseve.

pull your egr and clean it. if that doesn't work buy a new one

 

It may not be the valve itself - but the EGR ports, which are difficult to clean without pulling the intake manifold.

Try cleaning the valve & what you reach of the ports first. Then some people (myself included) have had luck cleaning out the ports by pouring a small amount of Seafoam in there.

And run a search, this is a frequent topic.