My check engine light came on. The diagnostic code read P0401. The car runs great on the highway but at 25mph and under there is jerking in the engine. Seems to hesitate a bit. I would like to fix it myself. Do I start with the EGR Valve then work my way to the DPFE Sensor. What do you recommend? Thanks
have the same problem?
Sunday, March 21st, 2010 AT 11:17 AM