The automobile dictionary meaning of the car engine is necessary thing if the real meaning of the car engine code is not found. The engine P1608 Code’s automobile dictionary meaning is p for Powertrain Code Problem is related engine, transmission and emissions systems. 1 for MFG – Manufacturer Specific. 6 for Vehicle Speed Control And Idle Control System. 0 for IC Circuit High Voltage and 8 for PCM Stack Overrun. The general meaning of the car engine P1608 explains about the powertrain problem and this problem is not difficult to fix and not expensive to solve. An automobile engineer can easily fix the issue.