If you seek online, you will get general information of the car engine problem related with the car engine P0793 Code. You need to use real meaning of the code. However, you should the check list to know the cause of the car engine. The real cause of the car engine’s problem should be found. You need to check O2 Sensor Heater Circuit Malfunction, Injection lump Fuel Metering Control ‘B’ High (Cam/Rotor/Injector) and timing Reference High Resolution Signal A Too Many Pulses. Now you can take step for solving the car engine step by step. You do not need to worry about the car engine problem.