The meaning of the B1929 Code helps to identify the real problem of the engine. The meaning of the code is found from the dictionary meaning. The main multi-displacement method shut down the reverse pairs of cylinders, letting the engine to have 3 various configurations and movements. The B1929 code had an extravagant diagnostics procedure of the engine, with showing the engine trouble codes on the air conditioning display. But, the system was problem, misinterpreted by clienteles, and a rash of random failures led to the technology being rapidly retired. You need to fix the issue by the help of the professional car engineer.