When the car engine is not running well, you should take the car engine for a test and by the engine code reader, you can know about the car engine problem. The engine code come by the test the car engine. The engine P0835 Code is found for your car engine by the test of the car engine. Do not drive the car with the car engine problem. You need to check Fuel Rail Pressure Sensor Circuit Malfunction, Cylinder 10 Contribution/balance Fault and Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical. It is easy to know the real cause of the car engine problem.