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Engine Controls - Sensor Operating Range Charts Ford Taurus II

Sensor Range Charts ~258 words

INTRODUCTION

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 may cause driveability problems. To determine correct engine control system, see SYSTEM APPLICATION table.

ApplicationSystem
1.8L, 2.0L A/T & 2.5LEEC
All OthersEEC-IV

SYSTEM APPLICATION

Note. Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. For sensor testing procedures, see appropriate G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section.

BAROMETRIC PRESSURE (BARO) SENSOR

Vacuum (In. Hg)Volts
03.9
43.6
83.1
122.5
162.0
201.5
240.9
280.4

BARO SENSOR SPECIFICATIONS

ENGINE COOLANT TEMPERATURE (ECT) SENSOR

Temperature °F (°C)Ohms
68 (20)2200-2700
104 (40)1000-1300
140 (60)500-650
176 (80)250-350

ECT SENSOR SPECIFICATIONS

COOLING FAN ENGINE COOLANT TEMPERATURE (ECTF) SENSOR

Temperature °F (°C)Ohms
196 (91)1700-1840
207 (97)1420-1530
226 (108)1030-1110

ECTF SENSOR SPECIFICATIONS

EXHAUST GAS RECIRCULATION TEMPERATURE (EGRT) SENSOR

Temperature °F (°C)Ohms
68 (20)182,000-336,000
85 (30)112,000-165,000
105 (41)41,300-47,600
125 (52)7500-10,500

EGRT SENSOR SPECIFICATIONS

EGR VALVE POSITION (EVP) SENSOR

Vacuum (In. Hg)(1) Volts
00.8
65.0
(1) Voltage value is approximate.
(1)Voltage value is approximate.

EVP SENSOR SPECIFICATIONS

HEATED OXYGEN SENSOR (HO2S)

ConditionVolts
Application0.5-1.0
Deceleration0-0.5
Idle (Cold)0
Idle (Warm)0-1
KOEO (1)0
(1) Key on, engine off.
(1)Key on, engine off.

HO2S SPECIFICATIONS

INTAKE AIR TEMPERATURE (IAT) SENSOR

Temperature °F (°C)Ohms
1.8L & 2.5L
32 (0)10,000-20,000
68 (20)2000-3000
104 (40)900-1300
2.0L A/T
32 (0)72,100-79,400
55 (13)54,300-58,600
77 (25)29,700-36,300
110 (43)17,900-19,300

IAT SENSOR SPECIFICATIONS

MASS AIRFLOW (MAF) SENSOR

ApplicationVolts
Engine Running1.5-5.0
Ignition On1.0-1.5

MAF SENSOR SPECIFICATIONS

MEASURING CORE-VOLUME VANE AIRFLOW (MC-VAF) SENSOR

Measuring Core PositionVolts
Closed4.0
1/4 Open2.4
1/2 Open1.6
3/4 Open0.8
Fully Open0.4

MC-VAF METER SPECIFICATIONS

THROTTLE POSITION (TP) SENSOR

Throttle Position(1) Ohms(1) Volts
1.8L A/T
1/8 Open.998.989
1/4 Open1.1041.60
3/8 Open1.2782.37
1/2 Open1.4622.74
5/8 Open1.4803.15
3/4 Open1.4593.43
7/8 Open1.1443.60
Full Open1.0724.02
2.0L A/T & 2.5L
Closed0.40.5
1/4 Open0.61.3
1/2 Open1.62.2
3/4 Open2.22.9
Full Open3.03.7
(1) Values may vary by 15 percent.
(1)Values may vary by 15 percent.

TP SENSOR SPECIFICATIONS

VANE AIRFLOW (VAF) SENSOR

Door Position(1) Volts
1/8 Open3.24
1/4 Open5.60
3/8 Open5.62
1/2 Open5.83
5/8 Open6.02
3/4 Open6.75
7/8 Open7.46
Full Open7.87
(1) Voltage may vary by 15 percent.
(1)Voltage may vary by 15 percent.

VAF SENSOR SPECIFICATIONS

AIR CHARGE TEMP (ACT) & ENGINE COOLANT TEMP (ECT) SENSORS

Temperature °F (°C)(1) Volts(1) Ohms
50 (10)3.5158,750
68 (20)3.0727,300
86 (30)2.6024,270
104 (40)2.1316,150
122 (50)1.7010,970
140 (60)1.337700
158 (70)1.337700
176 (80)0.783840
194 (90)0.602800
212 (100)0.462070
(1) Values may vary by 15 percent.
(1)Values may vary by 15 percent.

ACT & ECT SENSOR SPECIFICATIONS

DELTA PRESSURE FEEDBACK EGR (DPFE) & PRESSURE FEEDBACK EGR

(PFE) SENSORS

Pressure (psi)Vacuum (In. Hg)(1) Volts
4.348.834.56
3.256.623.54
2.174.412.51
1.082.211.48
000.45
(1) Voltage may vary by 15 percent.
(1)Voltage may vary by 15 percent.

DPFE SENSOR SPECIFICATIONS

Pressure (psi)Vacuum (In. Hg)(1) Volts
1.823.704.75
1.362.794.38
0.911.854.00
0.460.943.63
003.25
2.475.031.22
3.637.400.25
(1) Voltage may vary by 15 percent.
(1)Voltage may vary by 15 percent.

PFE SENSOR SPECIFICATIONS

FLEX FUEL (FF) SENSOR

Percentage Of MethanolFrequency (Hz)
030-70
1040-80
2050-90
3060-100
4070-110
5080-120
6090-130
70100-140
80110-150
90120-160
100130-170

FF SENSOR SPECIFICATIONS

MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR

Manifold Vacuum (In. Hg)(1) Frequency (Hz)
0159
3150
6141
9133
12125
15117
18109
21102
2495
2788
3080
(1) Frequency value may vary by 15 percent.
(1)Frequency value may vary by 15 percent.

MAP SENSOR FREQUENCY SPECIFICATIONS

Elevation (Feet)Volts
0 (1)1.55-1.63
10001.52-1.60
20001.49-1.57
30001.46-1.54
40001.43-1.51
50001.40-1.48
60001.37-1.45
70001.35-1.43
(1) At sea level.
(1)At sea level.

MAP SENSOR VOLTAGE SPECIFICATIONS

MANIFOLD ABSOLUTE PRESSURE (MAP)/BAROMETRIC PRESSURE (BARO)

SENSOR

Barometric Pressure (In. Hg)(1) Frequency (Hz)
17.1122.4
18.3125.5
19.5128.7
20.7131.9
21.8135.1
23.0138.3
24.2141.8
25.4145.4
26.6148.9
27.7152.5
28.9156.1
30.1159.6
31.0162.4
(1) Frequency value may vary by 15 percent.
(1)Frequency value may vary by 15 percent.

MAP/BARO SENSOR SPECIFICATIONS

MANUAL LEVER POSITION (MLP) SENSOR

PositionOhms
P3770-4607
R1304-1593
N660-807
D (1)361-442
D190-232
178-95
(1) Overdrive.
(1)Overdrive.

MLP SENSOR SPECIFICATIONS

Engine Condition (1)(2) Volts
Idle0.6
20 MPH1.1
40 MPH1.7
60 MPH2.1
(1) Engine at normal operating temperature. (2) Voltage may vary depending on vehicle load and temperature.
(1)Engine at normal operating temperature.
(2)Voltage may vary depending on vehicle load and temperature.

MAF SENSOR SPECIFICATIONS

Throttle Angle (Degrees)(1) Volts
00.50
100.97
201.44
301.90
402.37
502.84
603.31
703.78
804.24
(1) Voltage may vary by 15 percent.
(1)Voltage may vary by 15 percent.

TP SENSOR SPECIFICATIONS

TRANSMISSION OIL TEMPERATURE (TOT) SENSOR

Temperature °F (°C)(1) Volts(1) Ohms
Escort & Tracer A/T
32 (0)4.8252,000
68 (20)4.6123,000
104 (40)4.2611,000
140 (60)3.745600
212 (100)2.401710
All Others
32 (0)3.8896,255
59 (15)3.3246,883
104 (40)2.1516,043
158 (70)1.035260
194 (90)0.602750
(1) Value may vary by 15 percent.
(1)Value may vary by 15 percent.

TOT SENSOR SPECIFICATIONS