Engine Controls - Sensor Operating Range Charts: Introduction

Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a trouble code, but it may cause driveability problems.

NOTE: All voltage tests should be performed with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure.

AIRFLOW SENSOR VOLTAGE TEST⁽¹⁾

Between Terminals

Voltage

3 & 6

2.7-3.2

⁽¹⁾	Measure voltage with engine idling at normal operating temperature. See Fig 1 .

Fig 1: Identifying Airflow Sensor Connector

Courtesy of HYUNDAI MOTOR CO.

COOLANT TEMPERATURE SENSOR TEST ⁽¹⁾

Temperature °F (°C)

Volts

32 (0)

3.4-3.6

68 (20)

2.4-2.7

104 (40)

1.5-1.8

176 (80)

.5-.7

⁽¹⁾	Measure between ECM connector B, terminal No. 9 and ground.

COOLANT TEMPERATURE SENSOR RESISTANCE TEST ⁽¹⁾

Temperature °F (°C)

Ohms

32 (0)

5,900

68 (20)

2,500

104 (40)

1,100

176 (80)

300

⁽¹⁾	Measure resistance between sensor terminals.

INTAKE AIR TEMPERATURE SENSOR RESISTANCE TEST ⁽¹⁾

Temperature °F (°C)

Ohms

32 (0)

6,000

68 (20)

2,700

176 (80)

400

⁽¹⁾	Measure resistance between terminals No. 2 and 4. See Fig 1 .

THROTTLE POSITION SENSOR TEST (EXCEL) ⁽¹⁾

Throttle Position

Volts

Closed

.4-.7

WOT

4.5-5.5

⁽¹⁾	Measure between ECM connector B, terminal No. 9 and ground.

THROTTLE POSITION SENSOR (TPS) RESISTANCE TEST ⁽¹⁾⁽²⁾

Throttle Position

Ohms

Closed

500

WOT

3,500-6,500

⁽¹⁾	On 4-Cylinder models, measure between terminals No. 1 and 2. See Fig 2 .

⁽²⁾	On V6 models, measure between No. 2 and 4. See Fig 3 .

Fig 2: Identifying TPS Connector Terminals (4-Cylinder)

Courtesy of HYUNDAI MOTOR CO.

Fig 3: Identifying TPS Connector Terminals (V6)

Courtesy of HYUNDAI MOTOR CO.

CRANK ANGLE SENSOR TEST ⁽¹⁾

Application

Volts

Crank Angle Sensor ⁽²⁾

1.8-2.5

TDC Signal ⁽³⁾

.2-1.2

⁽¹⁾	Measure while cranking engine. See Fig 4 .

⁽²⁾	Measure between terminals No. 1 and 2.

⁽³⁾	Measure between terminals No. 1 and 3.

Fig 4: Testing Crank Angle Sensor Connector Terminals

Courtesy of HYUNDAI MOTOR CO.

OXYGEN (O2) SENSOR TEST ⁽¹⁾

Condition

Volts

Lean

Rich

⁽¹⁾	4-Cylinder measure, voltage between sensor terminals. On V6 models, measure voltage between sensor terminals No. 1 and 2 of 4-wire connector.

Fig 5: Identifying O2 Sensor Connector Terminals (V6)

Courtesy of HYUNDAI MOTOR CO.