The engine C1178 Code is important thing and by this code, it is possible to know the meaning of the code and identify the problem. Once you have the real meaning of the code, you have all machines, you can try to fix the car engine problem. The meaning of the code is available online but you are not going to use the general meaning of the engine code. The general meaning of the engine is not helpful. Read the manual of the car and car engine. You need to know the manufacturer name and model number of the car.