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 diagnostic trouble code, but it may cause driveability problems. For sensors not listed in this article, see appropriate SELF-DIAGNOSTICS article.

NOTE: Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. For connector terminal identification, see TERMINAL IDENTIFICATION in appropriate SELF-DIAGNOSTICS article.

NOTE: Diamante with traction control has accelerator pedal position sensor in addition to Throttle Position (TP) sensor. Measure accelerator pedal position sensor total and variable resistance between specified accelerator pedal position sensor terminals. See Fig 1 . See ACCELERATOR PEDAL POSITION (APP) SENSOR RESISTANCE TEST (DIAMANTE WITH TRACTION CONTROL) table.

ACCELERATOR PEDAL POSITION (APP) SENSOR RESISTANCE TEST (DIAMANTE WITH TRACTION CONTROL)

Terminals No.

Ohms

1 & 4

3500-6500

1 & 2

⁽¹⁾

⁽¹⁾	As throttle is opened from closed to wide open throttle, resistance should smoothly change in proportion to opening angle.

Fig 1: Identifying Accelerator Pedal Position Sensor Terminals (Diamante With Traction Control) & TP Sensor Terminals (All Models)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

BAROMETRIC PRESSURE SPECIFICATIONS

Altitude - Ft. (m)

⁽¹⁾ kPa

0 (0)

101

1969 (600)

3937 (1200)

5906 (1800)

⁽¹⁾	Use scan tool set in metric mode. Read BARO sensor value with key on and engine off.

ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE ⁽¹⁾

Temperature - °F (°C)

Ohms

32 (0)

5100-6500

68 (20)

2100-2700

104 (40)

900-1300

176 (80)

260-360

⁽¹⁾	Check resistance across ECT sensor terminals.

INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE ⁽¹⁾

Temperature - °F (°C)

Ohms

32 (0)

5300-6700

68 (20)

2300-3000

104 (40)

1000-1500

176 (80)

300-420

⁽¹⁾	On Mirage 1.5L, check resistance across IAT sensor terminals. On all other models, IAT sensor is incorporated in Volume Airflow (VAF) sensor assembly. Check resistance between VAF sensor terminals No. 5 and 6. See Fig 2 -Fig 4 .

Fig 2: Identifying IAT Sensor Terminals (Mirage 1.5L)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 3: Identifying IAT Sensor Terminals (Diamante & Montero)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 4: Identifying IAT Sensor Terminals (Eclipse, Galant, Lancer, Mirage 1.8L & Montero Sport)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE: On Diamante equipped with traction control, an accelerator pedal position sensor is used in addition to Throttle Position (TP) sensor.

NOTE: Measure TP sensor total and variable resistance between specified TP sensor terminals. See Fig 1 . See TP SENSOR TEST TERMINAL IDENTIFICATION table. Total resistance should be 3500-6500 ohms. Slowly open throttle valve from closed to wide open throttle. Variable resistance should change smoothly in proportion to throttle valve opening angle.

TP SENSOR TEST TERMINAL IDENTIFICATION

Application		Terminals No.
Total Resistance
Except Lancer		1 & 4
Lancer		2 & 3
Variable Resistance
Except Diamante, Lancer & Mirage		1 & 3
Diamante		3 & 4
Lancer		1 & 2
Mirage		2 & 4

VOLUME AIRFLOW (VAF) HERTZ TEST ⁽¹⁾

Application

Idle - Hz

2500 RPM - Hz

Diamante 3.5L

28-54

80-120

Eclipse 2.4L, Galant 2.4L

25-51

80-123

Eclipse 3.0L & Galant 3.0L

17-46

63-103

Mirage 1.8L

18-44

68-108

Montero 3.5L

17-43

64-104

Montero Sport 3.0L

25-51

74-114

Montero Sport 3.5L

18-44

58-98

⁽¹⁾	Measure Hertz (Hz) frequency using a scan tool.