The engine P0218 Code is important thing and the automobile meaning of the engine code is not helpful. Do not use any other meaning except the real meaning. The automobile meaning of the code is found from online. The general meaning of the code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 2 for Accelerator Pedal Position (APP) Sensor. 1 Performance. 1 for Low Coolant Circuit and 8 for PCM Stack Overrun. The lifters can be collapsed by disengaging an inner locking pin. The locking pin is detached using solenoids to change oil compression fed into the lifter.