Study on Fault Diagnosis of Electronic Controlled Gasoline Injection Engine Based on Throttle Position Sensor

The influences of the signal of full charge throttle position sensor on the capacity of engine is studied on the electronic controlled gasoline injection engine of VOLVO B230F. The results show that when full load signal is off,engine power and torque is decreased and CO and HC emissions are less and NOx is more than in normal mode. At last,the function of throttle position sensor which is carried out in the fault diagnosis of electronic controlled gasoline injection engine is pointed out.