Section 19 (Engine Controls - Sensor Operating Range Charts - (EEC-V)): Introduction

WARNING: This page does not describe the selected car, but rather 23 other vehicles, including the 1998 Mercury Tracer, 1998 Mercury Sable, 1998 Mercury Mystique, 1998 Mercury Mountaineer, and 1998 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For sensor information on Van E350 with 7.3L diesel, see TESTS W/CODES - DIESEL article.

Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a trouble code, but it will cause driveability problems. To determine correct engine control system, see SYSTEM APPLICATION table.

SYSTEM APPLICATION

Application	System
All Models	EEC-V

NOTE: Unless specified otherwise, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with minimum 10-megohm input impedance.

DPFE SENSOR SPECIFICATIONS ⁽¹⁾

Pressure (psi)

In. Hg

⁽²⁾ Volts

4.34

8.83

4.56

3.25

6.62

3.54

2.17

4.41

2.51

1.08

2.21

1.48

0.5

⁽¹⁾	This table applies to EEC-V models only.

⁽²⁾	Voltage specifications are calculated for a VREF equaling 5 volts. Specification may differ by as much as 15 percent. See CIRCUIT TEST HE in appropriate TESTS W/CODES - EEC-V article in the ENGINE PERFORMANCE section for further testing.

ECT, IAT & TFT SENSOR SPECIFICATIONS ⁽¹⁾

Temperature °F (°C)

Volts ⁽²⁾

⁽³⁾ Resistance Ohms

50 (10)

3.51

58,750

68 (20)

3.07

37,300

86 (30)

2.60

24,270

104 (40)

2.13

16,150

122 (50)

1.70

10,970

140 (60)

1.33

7600

158 (70)

1.02

5370

176 (80)

0.78

3840

194 (90)

0.60

2800

212 (100)

0.46

2070

230 (110)

0.35

1550

⁽¹⁾	Values may differ by as much as 15 percent.

⁽²⁾	Measure by backprobing signal circuit to ground.

⁽³⁾	Measure between sensor terminals.

EFT SENSOR SPECIFICATIONS ⁽¹⁾

Temperature °F (°C)

Volts ⁽²⁾

⁽³⁾ Resistance 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 differ by as much as 15 percent.

⁽²⁾	Measure by backprobing signal circuit to ground.

⁽³⁾	Measure between sensor terminals.

FUEL RAIL PRESSURE SENSOR VOLTAGE

psi (kPa)	Volts
0 (0)	0.5
10 (69)	1.1
20 (138)	1.6
30 (207)	2.2
40 (275)	2.8
50 (344)	3.4
60 (413)	3.9
70 (482)	4.5

TR SENSOR RESISTANCE

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.

TP SENSOR VOLTAGE

Throttle Angle

⁽¹⁾ Volts

0°

.65

10°

.97

20°

1.44

30°

1.90

40°

2.37

50°

2.84

60°

3.31

70°

3.78

80°

3.90

⁽¹⁾	Values may vary by 15 percent. For testing, see CIRCUIT TEST DH in appropriate TESTS W/CODES - EEC-V article in the ENGINE PERFORMANCE section.