The P010B Code explains about the problem area of the car engine. The P010B OBD2 exactly mentions to the camshaft (cam) timing. In this case, if the cam timing is over-retarded, the engine light will be lit and the code will be set. Do not drive the car with the engine problem. The general meaning of the problem is P for Powertrain Code – Problem is related engine, transmission and emissions systems. 0 for SAE – Generic. 1 for Fuel and Air Metering. 0 for Air Conditioning (A/C) Clutch Feedback Circuit High Voltage and B for TFP Valve Position Switch-Drive Without Drive Ratio.