Pickup 2WD L4-2254cc 2.3L SOHC (4ZD1) MFI (1994)
Wide Open Throttle Switch: Description and Operation
Wide Open Throttle Switch (WOT)
The Wide Open Throttle Switch (WOT) is connected to the throttle valve shaft in the throttle body assembly and informs the ECM of throttle
valve position. To differentiate between idle, intermediate and full throttle, the ECM detects resistance variations through the switch
corresponding to these three throttle valve positions. This input is entered into various ECM calculations such as ignition timing, injector pulse
width and air injection control.