The engine C1920 Code gives you information of the car engine problem. So, by the meaning of the code, it is possible to know about the problem. The problem of the engine can be solved without changing the car engine parts or components with reference to only a C1920 DTC. The car service manual should be checked for more information on likely causes of the burden, along with compulsory testing. Once the car engine is fixed, then you can drive but before finally accept the car, you must take the car for a test drive. Do not use wrong meaning of the code for solving the car engine problem.