The B1765 Code has a description and it is related with the car engine. You should not take the car out with the problem of the engine. The code has come on the code reader of the engine for the problem of the engine. Solving the problem from the engine is very necessary and for solving the problem from the engine, you need to use many things including expensive machines. You need to know manufacturer name and model number for solving the problem from the engine. Reading manual of the car and engine is the important thing to know more about the problem.