The right meaning of the car engine P2290 Code is available in the car engine manual and fix that faulty engine by the right meaning of the code. Fix the car engine by an automobile engineer if you do not know how to fix the car engine. The automobile dictionary meaning of the code is found online and it is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 2 for Accelerator Pedal Position (APP) Sensor 1 Performance. 9 for Crankshaft Position Sensor Circuit Performance and 0 for Transmission Engaged At High Throttle Angle.