Seat Leon S 1.4 1999 ME7.5.1 - Fault code 4191 P0401 in EOBD relates to EGR flow #Archived Message
Posted by john fletcher on June 21, 2007, 3:18 pm
CAN ANY ONE HELP ME WITH THIS ONE FAULT CODE 4191 OR PO401 IN OBD THIS RELATES TO EGR LOW FLOW ,I HAVE RENEWED THE EGR VALVE TWICE AND IT RUNS FOR ABOUT 10 DAYS BEFORE THE ECM LIGHT COMES BACK ON CLEANED ALL THE PIPES I CAN SEE THE TROUBLE IS THAT IT RUNS PERFECT WHEN THE LIGHT COMES ON AND IT DOES NOT AFFECT THE TICKOVER I HAVE RESET THE BASIC SETTINGS WITH MY KTS ANYONE HELP THANKS JOHN