1999 Honda Accord EX, 131,000 miles, 4 cyl, Manual Trans. Check engine light came on and I retrieved the above OBD II code indicating the following as possible causes:
-The DPF (differential pressure) sensor is faulty and needs to be replaced
-There is a blockage in the EGR (most likely carbon buildup)
-The EGR valve is faulty
-The EGR valve may not be opening due to a lack of vaccuum
There has been no noticable change in engine performance. Is there a way to determine which of the above problems is the culprit? I would assume the last one (lack of vaccuum) is not the problem since this EGR valve appears to be operated electrically.
-The DPF (differential pressure) sensor is faulty and needs to be replaced
-There is a blockage in the EGR (most likely carbon buildup)
-The EGR valve is faulty
-The EGR valve may not be opening due to a lack of vaccuum
There has been no noticable change in engine performance. Is there a way to determine which of the above problems is the culprit? I would assume the last one (lack of vaccuum) is not the problem since this EGR valve appears to be operated electrically.
Jul 10, 2007 at 6:41 AM