Yo J,
"Failure to install the throttle position sensor (TPS) correctly may result in excessive high idle speeds. Position the throttle position sensor so that the pigtail points toward the idle air control valve (IAC valve).
Removal & Installation:
Disconnect the TP sensor wiring harness.
On 5.0L and 5.8L engines, it may be necessary to remove the throttle body. On all other engines proceed to the next step.
Disconnect the wiring from the sensor.
Matchmark the TP sensor and throttle body. Remove the 2 retaining screws and the sensor.
To install:
WARNING
Slide the rotary tangs into position over the throttle shaft blade, then rotate the TP sensor CLOCKWISE only to the installed position. Failure to follow this step may result in high idle speeds for 5.0L and 5.8L engines.
On 5.0L and 5.8L engines, position the TP sensor so that the pigtail points toward the IAC valve.
Secure the TP sensor to the throttle body with the retaining screws. Tighten to 18-27 inch lbs. (2-3 Nm) on 4.9L engines or 11-16 inch lbs. (1.2-1.8 Nm) on 5.0L/5.8L engines.
If applicable, install the throttle body.
Connect the wiring.
Connect the negative battery cable."
by FORD
