The fault B1463 Code is related to the engine and it seems that the problem is allied of the body of engine. It is also noted that the you do not need to change the part. Manufacturer Specific codes that have a ‘1’ as their 2nd digit to designate they are single to a specific vehicle make or model. It seems that the problem of the engine code has come from the body of engine. The oxygen sensors on your car degree the oxygen in the finish to control how rich or lean the ratio of fuel and air are in the cylinders.