The engine C1911 Code is found many car engine and it is necessary thing for fixing the car engine problem. The right meaning of the code is necessary for fixing the car engine problem. Do not allow wrong meaning of the code and do not use automobile meaning of the engine code. The automobile meaning of the code is found online. The automobile meaning of the code is C for Chassis Code Problem is controller area network wiring bus and modules. 1 for MFG – Manufacturer Specific. 9 for Fuel And Air Metering (Injector Circuit Malfunctions Only). 1 for Low Coolant Circuit and 1 for TFP Valve Position Switch-Drive Without Drive Ratio.