Home ReviewsRefund
Home/Ford/Escort/Ford Escort V facelift 2 (1995-2002)/Repair manual/Sensor Range Charts/Engine Controls - Sensor Operating Range Charts
Contents Wiring diagrams Section: Sensor Range Charts All sections

Engine Controls - Sensor Operating Range Charts Ford Escort V facelift 2

Sensor Range Charts ~129 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 will cause driveability problems.

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

DIFFERENTIAL PRESSURE FEEDBACK EGR (DPFE) SENSOR

Pressure (psi)In. Hg(1) Volts
4.348.834.56
3.256.623.54
2.174.412.51
1.082.211.48
000.5
(1) Voltage specifications are calculated for a VREF equaling 5 volts. Specification may differ by as much as 15 percent. See CIRCUIT TEST HE in TESTS W/CODES article for further testing.
(1)Voltage specifications are calculated for a VREF equaling 5 volts. Specification may differ by as much as 15 percent. See CIRCUIT TEST HE in TESTS W/CODES article for further testing.

DPFE SENSOR SPECIFICATIONS

ENGINE COOLANT TEMPERATURE (ECT), INTAKE AIR TEMPERATURE

(IAT) & TRANSMISSION FLUID TEMPERATURE (TFT) SENSORS

Temperature °F (°C)(2) Volts(2) Ohms
50 (10)3.5158,750
68 (20)3.0737,300
86 (30)2.6024,270
104 (40)2.1316,150
122 (50)1.7010,970
140 (60)1.337600
158 (70)1.025370
176 (80)0.783840
194 (90)0.602800
212 (100)0.462070
230 (110)0.351550
(1) Measure between sensor terminals. (2) Values may differ by as much as 15 percent.
(1)Measure between sensor terminals.
(2)Values may differ by as much as 15 percent.

ECT, IAT & TFT SENSOR SPECIFICATIONS (1)

ENGINE FUEL TEMPERATURE (EFT) SENSOR

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)1.025370
176 (80)0.783840
194 (90)0.602800
212 (100)0.462070
248 (120)0.271180
(1) Values may vary by 15 percent.
(1)Values may vary by 15 percent.

EFT SENSOR SPECIFICATIONS

HEATED OXYGEN SENSOR (HO2S)

Condition(1) Voltage
RichIncreases
LeanDecreases
(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 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 article for terminal identification.

HO2S SPECIFICATIONS

INJECTION PRESSURE (IP) SENSOR

Voltage (DC)Pressure (psi)
4.5150
4.1140
3.7130
3.3120
2.9110
2.5100
2.190
1.780
1.370
0.960
0.550
0.140
0.037.5

IP SENSOR VOLTAGE-TO-FUEL PRESSURE CONVERSION CHART

MASS AIRFLOW (MAF) SENSOR

Engine Condition (1)(2) Volts
Idle0.8
20 MPH1.0
40 MPH1.7
60 MPH2.1
(1) Engine at normal operating temperature. (2) Voltage may vary depending on vehicle load and temp. See the TESTS W/CODES article for terminal identification.
(1)Engine at normal operating temperature.
(2)Voltage may vary depending on vehicle load and temp. See the TESTS W/CODES article for terminal identification.

MAF SENSOR SPECIFICATIONS

TRANSMISSION RANGE (TR) SENSOR

Selector Position(1) Ohms
Park3770-4607
Reverse1304-1593
Neutral660-807
Overdrive361-442
Second/Drive190-232
First78-95
(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

THROTTLE POSITION SENSOR

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, refer CIRCUIT TEST DH in TESTS W/CODES article.
(1)Values may vary by 15 percent. For testing, refer CIRCUIT TEST DH in TESTS W/CODES article.

TP SENSOR SPECIFICATIONS