Diagnostic Aids

Perform this test only when directed by QUICK TEST. EFT sensor will operate within the range of -40 to 275°F (-40 to 135°C). This system test is intended to diagnose the following components and circuits:

EFT Sensor
Wiring Harness Circuits (EFT & SIG RTN)
Powertrain Control Module (PCM)

EFT SENSOR SPECIFICATIONS ⁽¹⁾

Temperature °F (°C)

Volts

k/Ohms

-40 (-40)

4.54

92.50

50 (10)

3.51

58.75

68 (20)

3.07

27.30

86 (30)

2.60

24.27

104 (40)

2.13

16.15

122 (50)

1.70

10.97

140 (60)

1.33

7.70

158 (70)

1.02

5.37

176 (80)

0.78

3.84

194 (90)

0.60

2.80

212 (100)

0.46

2.07

230 (110)

0.35

1.55

248 (120)

0.27

1.18

275 (135)

0.19

.81

302 (150)

0.13

.56

⁽¹⁾	Values may vary by 15 percent.

NOTE: Fuel Rail Pressure (FRP) sensor may also be known as Injection Pressure (IP) sensor. Engine Fuel Temperature (EFT) sensor may also be known as Fuel Rail Temperature (FRT) sensor.