Problem Description and Possible Solution
The passages for the Exhaust Gas Recirculation (EGR) system can become restricted or clogged causing the Check Engine Light to illuminate. The EGR valve will need to be inspected and the passages cleaned.
Average mileage: 74,538 (21,206–110,000)
14 people reported this problem
EGR valve failed & clogged. EGR replaced but problem quickly resurfaced. Turned out that the passageway in the valve cover was clogged, too, and had to be reamed out. That fixed the problem entirely. Runs great now.
check engine light repeatedly comes on and occasionally clears itself. code indicates it is caused by clogged EGR valve ports. some sites state this was due to port holes being to small. it further indicates a recall was initiated, but I cannot confirm this on this site.
Have the same problem where the Check Engine light is on. Based upon the computer check, I have replaced the ECV, new plugs, new wires, tune up, new belts, new tires, and the Mazda dealer can't figure out what is going on.