The TPS transmits throttle angle information to the ECM which varies the injector pulse
width accordingly. Should the sensor fail, the warning horn will sound. RPM will be reduced
by the ECM. TPS settings are not adjustable. TPS settings can be monitored with
the Digital Diagnostic Terminal through the ECM. Voltage change should be smooth from
idle to wide open throttle. If voltage change is erratic, TPS is defective