The B1340 Code has different meanings and for finding the correct meaning of the code, knowing the name of the manufacturer and model number of the car is necessary. Now read the manual of the engine and car what will help you to solve the problem. There are mainly two types of cylinder termination method is used today and it is depending on the sort of engine. The B1340 code for the pushrod design which customs solenoids to alter the oil burden transported to the lifters. In their collapsed state, the lifters are powerless to raise their companion pushrods under the valve rocker arms, subsequent in valves that cannot be activated and remain locked.