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Sensor Range Charts

AIR TEMPERATURE SENSOR RESISTANCE

Temperature °F (°C)	Ohms
-4 (-20)	15,000
32 (0)	5800
68 (20)	2500
176 (80)	330
212 (100)	160

COOLANT TEMPERATURE SENSOR RESISTANCE

Application		Ohms
240, 740 & 940
14°F (-10°C)		8260-10,560
68°F (20°C)		2280-2720
176°F (80°C)		290-364
960
32°F (0°C)		7300
68°F (20°C)		2800
176°F (80°C)		300

FUEL INJECTOR BALLAST RESISTOR RESISTANCE ⁽¹⁾

Application

Ohms

240, 740 & 940

5.5-6.5

⁽¹⁾	Unit contains four resistors: one per injector. Check resistance between center terminal and 4 other terminals.

AIR CONTROL VALVE (IDLE VALVE) RESISTANCE

Application	Ohms
4-Cylinder	8
6-Cylinder	25

MASS AIRFLOW SENSOR RESISTANCE

Terminals

Ohms

2 & 3 ⁽¹⁾

2.5-4.0

⁽¹⁾	Resistance is measured between these terminals.

OXYGEN SENSOR HEATER RESISTANCE

Temperature °F (°C)	Ohms
68 (20)	2-3
660 (350)	7-14