The automobile meaning of the engine C1927 Code is found online and it 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). 2 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage and 7 for Cruise Inhibit Control Circuit. Do not solve the car engine with this common meaning of the code. The real meaning of the engine is found in the car manufacturer’s provides manual. So, if you know how to fix the car engine , you can follow the car engine manual for getting all meanings of the car engine.