DTC P0180 basically implies that the Powertrain Control Module has find that the voltage signal of the FTP sensor (Fuel Tank Pressure) is not within the expected level. The Fuel Tank Pressure Sensor (FTP) is a computerized device and it gives a signal to the PowerTrain Control Module (PCM) the precise amount that is in the composition of the fuel, as well as the reading of the fuel temperature gas.
All the fuel that passes through the on-line sensor is controlled, and in this way the degree of ethanol, water and other contaminants that might be present are determined. It also indicates the degree of fuel contamination. This contamination is measured taking into account the percentage of contamination in the fuel and is received by the PCM in the form of a square wave of voltage.
If the Power Train Control Module (PCM) detects an input signal from the sensor, which suggests that the fuel temperature is not within the expected level, or even that the fuel temperature is not equal to the temperature environment, the DTC code P0180 OBD2 is established.