L is a low gear ,and if u put it to the L position the car will stop in this low gear. but wen you put it in D then it will go up through the gears. Anonymous Â· 8 years ago 1
An engine that hesitates, stumbles or misfires when accelerating or when it is under load, is an engine that is either sucking too much air, not getting enough fuel, or misfiring. If the Check Engine Light comes on, you may find any of the following codes: P0171, P0174 Lean fuel condition codes.
4. Engine surging. When a vehicle sucks in more air than usual in the combustion process it can cause the vehicle to jerk and then slow down or continually start and stop, which means the vehicles engine is working inefficiently.