The engine P1274 Code is an important thing and an automobile engineer knows the process of solving the car engine. The powertrain problem of the car engine is not very serious problem but it should be fixed properly. You must find the real cause of the car engine problem. You should test the car engine and test all symptoms what you have found in the car engine. You should check all of the things and those are Ambient Air Temperature Sensor Circuit Low, Cold Start Injector 1 Malfunction and Shift Solenoid E Performance or Stuck Off. When the car engine is ok, you must take it for a test drive.