Home/Ford/Pickup F250/Ford Pickup F250 (1996-1999)/Repair manual/Sensor Range Charts/Engine Controls - Sensor Range Charts - Eec-Iv - 7.5L: Other

Contents

Wiring diagrams Section: Sensor Range Charts

Engine Controls - Sensor Range Charts - 4.2L

Engine Controls - Sensor Range Charts - 4.6L

All sections

Engine Controls - Sensor Range Charts - Eec-Iv - 7.5L: Other Ford Pickup F250

Sensor Range Charts

ENGINE FUEL TEMPERATURE (EFT) SENSOR

Temperature °F (°C)	(1) Volts	(1) Ohms
50 (10)	3.51	58,750
68 (20)	3.07	27,300
86 (30)	2.60	24,270
104 (40)	2.13	16,150
122 (50)	1.70	10,970
140 (60)	1.33	7700
158 (70)	1.02	5370
176 (80)	0.78	3840
194 (90)	0.60	2800
212 (100)	0.46	2070
248 (120)	0.27	1180
(1) Values may vary by 15 percent.

(1)	Values may vary by 15 percent.

EFT SENSOR SPECIFICATIONS

HEATED OXYGEN SENSOR (HO2S)

Condition	(1) Voltage
Rich	Increases
Lean	Decreases
(1) Measure between oxygen sensor connector and ground. Voltage should toggle above and below 0.45 volt when system in closed loop. See TESTS W/CODES - 7.5L article for terminal identification.

(1)	Measure between oxygen sensor connector and ground. Voltage should toggle above and below 0.45 volt when system in closed loop. See TESTS W/CODES - 7.5L article for terminal identification.

HO2S SPECIFICATIONS

INJECTION PRESSURE (IP) SENSOR

Voltage (DC)	Pressure (psi)
4.5	150
4.1	140
3.7	130
3.3	120
2.9	110
2.5	100
2.1	90
1.7	80
1.3	70
0.9	60
0.5	50
0.1	40
0.0	37.5

IP SENSOR VOLTAGE-TO-FUEL PRESSURE CONVERSION CHART

MAP SENSOR

Manifold Vacuum (In. Hg)	(1) Frequency (Hz)
0	159
3	150
6	141
9	133
12	125
15	117
18	109
21	102
24	95
27	88
30	80
(1) Specification is based on barometric pressure of 30.0 in. Hg. Values may differ by as much as 3 Hz. See TESTS W/CODES - 7.5L article for terminal identification.

(1)	Specification is based on barometric pressure of 30.0 in. Hg. Values may differ by as much as 3 Hz. See TESTS W/CODES - 7.5L article for terminal identification.

MAP SENSOR SPECIFICATIONS

TRANSMISSION RANGE (TR) SENSOR

Selector Position	(1) Ohms
Park	3770-4607
Reverse	1304-1593
Neutral	660-807
Overdrive	361-442
Second/Drive	190-232
First	78-95
(1) Values may differ by as much as 15 percent. Measure between Gray/Red and Light Blue/Yellow wires at TR sensor with transmission selector in specified position.

(1)	Values may differ by as much as 15 percent. Measure between Gray/Red and Light Blue/Yellow wires at TR sensor with transmission selector in specified position.

TR SENSOR SPECIFICATIONS