grid. ,e TPS CALIBRATION KIT The throttle position sensor (TPS) is housed on the bottom of the tugogggogy. This rotary-potentiometerbased device sends a voltage Signal to h Ford indicate the position (and rate of change of position) of the throttle s a . service literature ShOWS that a five-ohss throttle position sensor 8 Signa . | d between .6 and 4.585 VOltS, the lower number indicating that the throttle l8 0 ose - and the higher signaling wide-open throttle. With the engine off and the Ignltlon ' key switched on , a digital voltmeter connected across the sensor 3 Wires should read .854 volt. At idle, a reading of .98-1 volt is considered deSlrable for performance service. A TPS setting of 1 volt at idle produces 4.6-4.8 volts at , wide open throttle. Adjustment involves loosening the pair of screws that attach the sensor to the throttle housing and rotating the sensor until the meter reading ' is corrected. The meters positive connects to the sensors green wire and the negative lead goes to the black wire. Due to variations in production equipment the holes in the sensor housing may require elongation before it becomes (possible to obtain the desired reading. TPS voltage should be checked anytime ine idle is adjusted. The following steps must be completed in order. ' the jumper harness inline with your factory TPS wiring. (Figu V and getto operating temperature. * * "Air 6 ~ ol Solenoid (lAC). lf engine stalls, turn .. estart. (Figure 2 item '11:)