Is it possible to have a bad dpfe but no check engine light? I can’t get the egr monitor to run no matter how much i drive it. I replaced the dpfe back in the fall but with a Napa replacement to see if that was the case. No change. I just ordered a motor craft part. That’s my next step. I have a Delphi egr valve but haven’t installed it yet. My goal is to pass New York emissions test and the egr and cat monitor won’t run. Car has cats. No check engine light. No codes. Very frustrating.
Sent from my iPhone using the svtperformance.com mobile app
Sent from my iPhone using the svtperformance.com mobile app