This engine C1780 Code describes about the car engine problem. Do not detect any meaning for solving the car engine problem. The right meaning of the code is related with the car model and brand. The automobile dictionary meaning of the code, you may use for learning only. The automobile meaning of the code is available online and the general meaning of the engine is related with general information. It may make more trouble if you follow general information. Read the manual of the engine and car to know some important information for solving the car engine problem quick. After solving the problem, take the car for a test drive.