E350 Issues.




Could also be caused by a bad crank/cam position sensor, clogged fuel filter (low fuel flow), weak fuel pump (low fuel flow), EGR valve (remaining slightly open at idle causing the idle mixture to be too diluted with air) or bad timing belt (not a problem with these engines but it once took me four months to trace my CELs and intermittent misfire to a bad timing belt...*after* replacing all of the previously mentioned items!).
Start with the codes and then move forward in logical sequence.


