Sensor Operating Specifications

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

COOLANT TEMPERATURE SENSOR RESISTANCE

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.

MAP SENSOR VOLTAGE

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 ⁽¹⁾

Condition

Volts

Lean

Rich

1.0

⁽¹⁾	Test at normal operating temperature.

THROTTLE POSITION SENSOR VOLTAGE ⁽¹⁾

Position

⁽²⁾ Volts

Closed Throttle

Open Throttle

5.0

⁽¹⁾	For terminal locations, see WIRING DIAGRAMS - 3.1L article.

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

VEHICLE SPEED SENSOR CONTINUITY ⁽¹⁾

Application

⁽²⁾ Continuity

Pickup 3.1L

4 Changes Per Revolution

⁽¹⁾	Measure continuity at back of speedometer. See WIRING DIAGRAMS - 3.1L article.

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

VEHICLE SPEED SENSOR VOLTAGE ⁽¹⁾

Application

⁽²⁾ Volts

Pickup 3.1L

Less than 10

on and off.

⁽¹⁾	Measure voltage at back of speedometer. See WIRING DIAGRAMS - 3.1L article.

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