Tech question: 97 Land Cruiser EGR flow insufficent error ..

External Since: Aug 01, 2006 Posts: 3

Hi group,
I am hoping a Toyota tech reads this and can tell me how to diagnose
the error code on my Crusher. It has the 401 code and how can I tell if
it is the egr valve vsv, or other component?
Thanks,
Bob in HB

External Since: Aug 01, 2006 Posts: 3

qslim wrote:
> One easy preliminary check you can do is to manually apply vacuum to the
> small port ontop of the EGR valve. Doing so should stall the engine at
> idle if the valve and passages in the intake manifold are clear. If the
> engine doesn't stall, then you know you probably have dirty ports in the
> manifold or a gummed up valve. Otherwise you'll know the problem lies on
> the control side of the system, like the VSV.

Ok, I'll test it and let the group know the results..Thanks!

Bob