Replaced the DPFE and EGR valves, thought I was good, didnt get a CEL for about 500 miles, then it poped back on again yesterday evening, so I cleared the code, continued to drive it, after about 20 more miles the code came back up again.
Today I pulled the throttle body to check the EGR passageways, I knew they were clean but I wanted to be sure, and they still were clean as the last owner had just done a UIM rebuild, checked the vac line going to the EGR, its in good shape, so now I dont know what to do, is it possible that I've had 2 bad EGR valves? I know its rare for them to fail, but I suppose it could happen? :shrug:
Today I pulled the throttle body to check the EGR passageways, I knew they were clean but I wanted to be sure, and they still were clean as the last owner had just done a UIM rebuild, checked the vac line going to the EGR, its in good shape, so now I dont know what to do, is it possible that I've had 2 bad EGR valves? I know its rare for them to fail, but I suppose it could happen? :shrug: