You need to know the meaning of the B1860 Code and it is possible to get the real meaning if you get the manufacturer name and model number. The code is relevant with the car engine and the code is set for all of the car engines. The code is highly associated with the manufacture and if you know the dictionary meaning, you will get some help for solving the issue. There are now 2 kinds of cylinder deactivation ways used today what depends on the type of engine. The B1860 code for the pushrod design which usages solenoids to alter the oil compression delivered to the lifters.