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My check engine light comes on in my 1999 Honda accord v6 and the code po1491 egr valve insufficient lift I have replaced the egr valve but the light continues to come on is there something else wrong?
Wiki User
∙ 16y ago
Most likely the egr ports in the intake manifold are plugged.This requires the removal of the upper intake manifold.Then you can access the egr ports and clean them with a coat hangar and a power drill.The ports clog up as a result of poorthe poor fuel quality we get here in North America.Honda makes a speacial repair kit for these egr problems consisting of a neww egr valve intake gaskets and a metal tube that is inserted into the egr port to eliminate the build up of carbon deposits in the ports.Good luck. Ralph E. Evans. A.S.E. master technician Boulder Colorado.
Wiki User
∙ 16y ago
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