The C1400 Code is important thing for solving the car engine problem and getting the correct meaning of the code is necessary to know. The controllers of apiece cylinder are kept closed using a pair of arms that replace the conventional engine’s roller-type rocker arm. The engine C1400 code is one of these arms follows the cam profile though the 2nd arm joins to the valves. During usual engine operation the 2 arms are linked by a locking pin. Do not driver the car with the faulty engine. You need to fix the car engine and after that a test drive is necessary.