Fuel Consumption Using OBD-II and Support Vector Machine Model

Table 2

Some PID codes and their meaning.

PID	Description	Number of bytes	Scale	Units
05	Engine coolant temperature	1 byte	1	°C
0A	Fuel pressure	1 byte	3	Kilopascal (kPa)
0B	Intake manifold pressure	1 byte	1	kPa
0C	Engine RPM	2 bytes	0.25	rpm
0D	Vehicle speed	1 byte	1	km/h
0E	Timing advance	1 byte	0.5	degrees
0F	Intake air temperature	1 byte	1	°C
10	MAF air flow rate	2 bytes	0.01	g/s
11	Throttle position	1 byte	0.3922	%
1F	Run time since engine start	2 bytes	1	Seconds