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Sensor Range Charts

COOLANT TEMP SENSOR RESISTANCE (2.3L)

Condition

⁽¹⁾ Ohms

Cold Engine

70

Warm Engine

800

⁽¹⁾	Measure resistance across disconnected sensor terminals.

COOLANT TEMP SENSOR RESISTANCE (2.6L)

Temperature °F (°C)

⁽¹⁾ Ohms

14 (-10)

7000-12,000

50 (10)

3000-5000

68 (20)

2000-3000

122 (50)

700-1000

176 (80)

200-400

⁽¹⁾	Measure resistance across disconnected sensor terminals.

COOLANT TEMP SENSOR RESISTANCE (2.8L)

Temperature °F (°C)

⁽¹⁾ Ohms

0 (-18)

25,000

20 (-7)

13,500

40 (4)

7500

70 (21)

3400

100 (38)

1800

160 (71)

450

212 (100)

185

⁽¹⁾	Measure resistance across disconnected sensor terminals.

COOLANT TEMP SENSOR RESISTANCE (3.1L)

Temperature °F (°C)

⁽¹⁾ Ohms

5 (-15)

21,450

23 (-5)

12,300

41 (5)

7280

68 (20)

3520

104 (40)

1459

158 (70)

467

212 (100)

185

⁽¹⁾	Measure resistance across disconnected sensor terminals.

EGR TEMP SENSOR RESISTANCE (2.6L CALIF.)

Temperature °F (°C)

⁽¹⁾ Ohms

32 (0)

28,000

68 (20)

12,100

109 (43)

5900

176 (80)

1700

212 (100)

1000

⁽¹⁾	Measure resistance across disconnected sensor terminals.

MAP SENSOR VOLTAGE (2.8L)

Altitude Feet

⁽¹⁾ Volts

Below 1000

3.8-5.5

1000-2000

3.6-5.3

2000-3000

3.5-5.1

3000-4000

3.3-5.0

4000-5000

3.2-4.8

5000-6000

3.0-4.6

6000-7000

2.9-4.5

7000-8000

2.8-4.3

8000-9000

2.6-4.2

⁽¹⁾	Measure voltage at Light Green wire terminal.

MAP SENSOR VOLTAGE (2.6L)

Condition

⁽¹⁾ Volts

Vacuum hose disconnected

Greater than 2.5

Vacuum hose connected

Less than 2.5

⁽¹⁾	Measure voltage across terminals No. 1 and 2.

MAP SENSOR VOLTAGE (3.1L)

Throttle Position

⁽¹⁾ Volts

Closed

1-1.5

Wide open

4.5-4.8

⁽¹⁾	Measure voltage at Pink wire and Light Green wire terminals with ignition on.

OXYGEN SENSOR VOLTAGE TEST ⁽¹⁾

Condition

Volts

Lean

0.1

Rich

0.9

⁽¹⁾	Test at normal operating temperature.

THROTTLE POSITION SENSOR VOLTAGE ⁽¹⁾

Position

⁽²⁾ Volts

Closed Throttle

0.48

Open Throttle

4.5

⁽¹⁾	For terminal locations, see appropriate WIRING DIAGRAMS article in the ENGINE PERFORMANCE Section.

⁽²⁾	Voltage should increase smoothly from closed to wide open throttle.

VEHICLE SPEED SENSOR CONTINUITY TEST ⁽¹⁾

Application

⁽²⁾ Continuity

All Models

4 Changes Per Revolution

⁽¹⁾	Measure continuity at back of speedometer. See WIRING DIAGRAMS article in the ENGINE PERFORMANCE Section.

⁽²⁾	Turn speedometer cable to cycle reed switch on and off.

VEHICLE SPEED SENSOR VOLTAGE TEST ⁽¹⁾

Application

⁽²⁾ Volts

All Models

Less than 10

⁽¹⁾	Measure voltage at back of speedometer. See WIRING DIAGRAMS article in the ENGINE PERFORMANCE Section.

⁽²⁾	With ignition on, turn speedometer cable to cycle reed switch on and off.