Read the manual of the car engine to know detail about the real meaning of the engine P0894 Code. Do not trust on any meanings of the engine code what may make problem in the car engine. You can read the automobile dictionary meaning and it is p for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 8 for Ignition System Or Misfire. 9 for Crankshaft Position Sensor Circuit Performance and 4 for Cruise Vehicle Speed/Set Speed Difference Too High. The problem of the engine is located in the car engine’s powertrain problem what is not difficult to solve.