The car engine code C1255 OBD2 may also be activated by faults previous down the line. Such as, a dirty MAF sensor might be producing the car to overreact in its fuel-trim alterations. So, the oxygen sensors are likely to report fuel blend difficulties. When the fuel economy was amplified, hastening was very compromised, and the loss of engine vacuum led to a dangerous loss of slowing assist when the C1255 code system was in 4 cylinder mode. This car engine has different problems and it is easy to fix the car engine if real meaning of the code is found from the manufacturer.