Sensor Operating Range Charts

ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE

Temp. °F (°C)	Ohms
32 (0)	5210-6730
68 (20)	2210-2690
104 (40)	1140
140 (60)	580
176 (80)	290-350

EGR TEMPERATURE (EGRT) SENSOR RESISTANCE ⁽¹⁾

Temp. °F (°C)

Ohms

68 (20)

214,000-313,800

104 (40)

90,900-125,700

140 (60)

42,100-55,500

176 (80)

21,100-26,500

212 (100)

11,200-13,600

⁽¹⁾	Used on California models and 1.6L.

CAUTION: Blowing compressed air through mass airflow sensor will damage it.

MASS AIRFLOW (MAF) SENSOR VOLTAGE TEST ⁽¹⁾

Application

ECM Terminal

Volts

Ign. On, Eng. Off ⁽²⁾

B8 & Ground

1.0-1.6

Engine Idle Speed

B8 & Ground

1.7-2.0

⁽¹⁾	Voltage should increase as engine speed increases.

⁽²⁾	Ignition on, confirm battery voltage between B+ of MAF coupler and ground.

POWER STEERING PRESSURE SIGNAL VSV (IF EQUIPPED)

Application

Ohms

All Models

⁽¹⁾ .33-.39

⁽¹⁾	Measure between power steering VSV terminals.

THROTTLE POSITION (TP) SENSOR RESISTANCE

Application

Ohms

Between Terminals "A" & "B"

With .020" (.50 mm) Clearance At Stop Screw

0-500

With .031" (.80 mm) Clearance At Stop Screw

Infinity

Between Terminals "A" & "D"

3500-6500

Between Terminals "A" & "C"

At Idle

300-2000

At Wide Open Throttle

⁽¹⁾ 2000-6500

⁽¹⁾	There should be more than 2000 ohms difference between idle and wide open throttle readings.

VEHICLE SPEED SENSOR (VSS) RESISTANCE

Application

Ohms

All Models

⁽¹⁾ *

⁽¹⁾	With ohmmeter connected to vehicle speed sensor terminals, ohmmeter should alternate between zero and infinity 4 times per sensor shaft revolution.