response to accelerator pedal position and various control functions such as idle speed control engine governor control cruise control and traction control additionally the pcm 26 controls conventional spark and fuel control devices 50 52 coupled to engine 12 according to this invention the pcm 26 controls the motor 24 during periods of engine power limiting so as to limit the vehicle acceleration to a calibrated value based on vehicle speed the control is described in u s pat no 6 167 343 to bauerle which is incorporated in its entirety by reference herein during certain operating conditions such as a single point sensor failure the speed of the vehicle will be limited by the position of the throttle 22 the position of the throttle 22 is related to both the speed of the vehicle and the torque output of the engine 12 as described previously during certain driving conditions that involve high torque demand the air flow through the throttle 22 at a limited position will not be great enough to produce a desired torque for applications such as towing the limited torque produced by the fixed throttle limit is heavily dependent on operating environment and vehicle loading this invention overcomes these limitations while maintaining a safe vehicle response during the sensor failure referring to fig2 the method of.