Sensor Operating Range Charts

COOLANT TEMPERATURE SENSOR RESISTANCE TEST⁽¹⁾

Temperature °F (°C)

Ohms

212 (100)

177

194 (90)

241

176 (80)

332

158 (70)

467

140 (60)

667

122 (50)

973

113 (45)

1188

104 (40)

1459

95 (35)

1802

86 (30)

2238

77 (25)

2796

68 (20)

3520

59 (15)

4450

50 (10)

5670

41 (5)

7280

32 (0)

9420

23 (-5)

12,300

14 (-10)

16,180

5 (-15)

21,450

-4 (-20)

28,680

-22 (-30)

52,700

-40 (-40)

100,700

⁽¹⁾	Measure resistance across sensor terminals.

MAP SENSOR VOLTAGE TEST ⁽¹⁾

Altitude Feet

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

9000-10,000

2.5-4.0

⁽¹⁾	Measured at sensor or as seen on scan tester.

MANIFOLD AIR TEMPERATURE SENSOR RESISTANCE TEST ⁽¹⁾

Temperature °F (°C)

Ohms

212 (100)

185

160 (70)

450

100 (38)

1800

70 (20)

3400

40 (4)

7500

20 (-7)

13,500

0 (-18)

25,000

-40 (-40)

100,700

⁽¹⁾	Measure resistance across sensor terminals.

OIL TEMPERATURE SENSOR RESISTANCE TEST (CORVETTE) ⁽¹⁾

Temperature °F (°C)

Ohms

212 (100)

185

160 (70)

450

100 (38)

1800

70 (20)

3400

40 (4)

7500

20 (-7)

13,500

0 (-18)

25,000

-40 (-40)

100,700

⁽¹⁾	Measure resistance across sensor terminals.

OXYGEN SENSOR VOLTAGE TEST ⁽¹⁾

Condition

Volt

Lean

Rich

⁽¹⁾	Measure voltage between O2 sensor ground and signal terminals at ECM.