BMW325i Hard starts, stalling and rough idle
My 325I is not starting, needs to be jumped than stalls and rough idles. Replaced ignition coils and checked the spark plugs. When I switched the ignition coils and spark plugs around to see if they would make a difference, the cylinder closest to back of engine did not effect the idle when unplugged. All other cylinders when unplugged made a difference. CEL on. Codes are P0313,P0300, P1345,P1353 and P0455. On highways around 70 mph sounds like going over cattle grates.
Any suggestions of what do next? Super sad cause I love this car.
Really need your help I want to work on it this weekend!
Last edited by jillsocean; 11-28-2014 at 10:02 AM.