Accelerator pedal calibration and fault detection

DETAILED DESCRIPTION What is claimed is: 1.
A calibration for use with a vehicle equipped with said throttle controlled engine and an electronic control unit having a processor for executing a predetermined set of instructions stored in a memory so as to control the engine, the vehicle also including in electronic accelerator pedal in communication with the processor for providing a signal indicative of a requested fueling level for the engine, the accelerator pedal having a range of travel between a fully released position and a fully depressed position, a method for automatically calibrating the electronic accelerator pedal comprising: associating a first parameter stored in the memory with a value representing the signal provided by the electronic accelerator pedal when power is first applied to the system and the signal is within a first predetermined calibration range; altering engine fueling progression to provide a decreased engine fueling response to the range of travel of the electronic accelerator pedal so as to induce displacement of the electronic accelerator pedal to the fully depressed position; and associating a second parameter stored in the memory with a value representing the signal provided by the electronic accelerator pedal when the signal is within a second predetermined calibration range so as to automatically calibrate the electronic accelerator pedal.
2.
The method of claim 1 further comprising storing a new value in the memory for the first parameter representing the signal provided by the electronic accelerator pedal when the signal value is within the first predetermined calibration range and the signal value is less than the previously stored value for the first parameter.
3.
The method of claim 1 further comprising storing a new value in the memory for the second parameter representing the signal provided by the electronic accelerator pedal when the signal value is within the second predetermined calibration range and the signal value exceeds the previously stored value for the second parameter