Throttle Position Sensor
WARNING: This page is about a different car, the 2002 Isuzu Trooper, 2002 Isuzu Rodeo Sport, 2002 Isuzu Rodeo, 2002 Isuzu Axiom, and 2002 Honda Passport. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
See THROTTLE POSITION SENSOR OR THROTTLE SWITCH
in ON-VEHICLE ADJUSTMENTS article for throttle position sensor/switch adjustment procedures.