The general meaning of the P20E2 Code is not helpful but many people are interested to get the general meaning of the code. The general meaning of the code is P for Powertrain Code – Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 0 for Transmission e – BBV Sensor Circuit Low Voltage and 2 for Kick-Down Switch Failed Short. The P20e2 engine code appears a kind of powertrain problem. The car engine system mainly works especially advanced hydraulic lifters for the P20e2 code intake and finish valves. The lifters can be distorted by unfastening an internal locking pin.