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Engine Controls - Sensor Operating Range Charts Mitsubishi Eclipse I

Sensor Range Charts ~251 words

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. 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 and terminal identification, see WIRING DIAGRAMS article in the ENGINE PERFORMANCE Section.

ConditionHz
Diamante
700 RPM25-50
2000 RPM65-105
Eclipse
1.8L
700 RPM25-40
2000 RPM67-88
2.0L
750 RPM25-50
2000 RPM
Non-Turbo70-90
Turbo60-85
Expo/Expo LRV
1.8L
750 RPM23-49
2000 RPM51-91
2.4L
750 RPM34-60
2000 RPM70-110
Galant
SOHC
750 RPM25-50
2000 RPM70-130
DOHC
750 RPM
Non-Turbo25-50
Turbo30-50
2000 RPM
Non-Turbo60-90
Turbo50-80
Mirage
1.5L
750 RPM30-45
2000 RPM80-110
1.6L
750 RPM27-33
2000 RPM60-80
Montero
700 RPM27-48
2000 RPM60-100
Pickup
2.4L
750 RPM40-60
2000 RPM85-105
3.0L
700 RPM25-45
2000 RPM70-90
Precis
750 RPM27-33
2000 RPM60-80
3000GT
700 RPM25-50
2000 RPM70-100
(1) Measure hertz frequency with Multi-Use Tester (MUT).
(1)Measure hertz frequency with Multi-Use Tester (MUT).

AIRFLOW METER HERTZ TEST (1)

ConditionVolts
Colt, Colt 200, Ram-50 & Summit
750-2000 RPM2.2-3.2
Stealth
700 RPM0-1.0
3000 RPM6.0-9.0

AIRFLOW METER VOLTAGE TEST

Altitude Ft. (m)Volts
Colt, Colt 200, Summit
0 (0)3.7-4.3
3937 (1200)3.2-3.8
Colt Vista, Summit Wagon
0 (0)3.7-4.3
3937 (1200)3.2-3.8
Ram-50, Stealth & 3000GT
0 (0)3.7-4.3
3937 (1200)3.2-3.8

BAROMETRIC PRESSURE SENSOR VOLTAGE TEST

Altitude Ft. (m)In. Hg
Eclipse, Mirage & Precis
10 (0)30
1969 (600)28
3937 (1200)26
5906 (1800)24
Diamante, Expo/Expo LRV & Galant
10 (0)30
1969 (600)28
3937 (1200)26
5906 (1800)24
Montero & Pickup
10 (0)30
1969 (600)28
3937 (1200)26
5906 (1800)24

BAROMETRIC PRESSURE SENSOR VACUUM TEST

Temperature °F (°C)Ohms
Eclipse
68 (20)2200-2600
176 (80)264-328
Galant, Mirage, Ram-50 2.4L & Pickup 2.4L
32 (0)5900
68 (20)2500
104 (40)2700
176 (80)300
All Others
32 (0)5800
68 (20)2400
104 (40)1100
176 (80)300

COOLANT TEMPERATURE SENSOR RESISTANCE

Temperature °F (°C)Ohms
122 (50)60-83
212 (100)11-14
(1) Measure resistance across disconnected sensor terminals. (2) Specifications apply to all models except Montero.
(1)Measure resistance across disconnected sensor terminals.
(2)Specifications apply to all models except Montero.

EGR TEMPERATURE SENSOR RESISTANCE TEST (1) (2)

Temperature °F (°C)Ohms
Precis
32 (0)5400-6600
68 (20)2300-2970
176 (80)310-430
All Others
32 (0)6000
68 (20)2700
176 (80)400

INTAKE AIR TEMPERATURE SENSOR RESISTANCE

Motor Position Sensor

Measure sensor resistance between the specified terminals. See MOTOR POSITION SENSOR TEST TERMINALS table. With sensor connector unplugged, resistance should be 4000-6000 ohms. With Idle Speed Control (ISC) motor activated (6 volts applied between ISC connector terminals No. 1 and 2), resistance should change smoothly between 4000 and 6000 ohms.

ConditionTerminals
Sensor Connector Unplugged
Colt, Colt 200, Eclipse, Mirage 1.5L, & Summit2 & 3
Expo/Expo LRV & Galant SOHC2 & 3
Precis4 & 5
Pickup & Ram-50
2.4L2 & 3
3.0L1 & 4
Stealth & 3000GT2 & 3
ISC Motor Activated (1)
Colt, Colt 200, Eclipse, Mirage 1.5L & Summit3 & 5
Expo/Expo LRV, Galant SOHC, Stealth & 3000GT3 & 5
Precis2 & 4
Pickup & Ram-503 & 5
(1) Apply 6 volts between terminals No. 1 and 2 of ISC connector.
(1)Apply 6 volts between terminals No. 1 and 2 of ISC connector.

MOTOR POSITION SENSOR TEST TERMINALS

ApplicationVolts
All Models
Lean0.1
Rich1.0
(1) Measure between sensor terminal No. 1 and ground or between terminals No. 1 and 2. (2) Test at normal operating temperature.
(1)Measure between sensor terminal No. 1 and ground or between terminals No. 1 and 2.
(2)Test at normal operating temperature.

OXYGEN SENSOR VOLTAGE TEST (1) (2)

Application (2)(3) Ohms
Eclipse 2.0L, Galant & Mirage 1.6L12
Montero, Pickup 3.0L, Ram-50 3.0L, Stealth & 3000GT20
(1) Information on other models is not available from manufacturer. (2) Measure between sensor terminals No. 3 and 4. Stealth and 3000GT turbo models have 2 oxygen sensors; measure between sensor terminals No. 2 and 4 on rear sensor. (3) Measure resistance with temperature at 68°F (20°C).
(1)Information on other models is not available from manufacturer.
(2)Measure between sensor terminals No. 3 and 4. Stealth and 3000GT turbo models have 2 oxygen sensors; measure between sensor terminals No. 2 and 4 on rear sensor.
(3)Measure resistance with temperature at 68°F (20°C).

OXYGEN SENSOR HEATING ELEMENT RESISTANCE TEST (1)

Throttle Position Sensor (TPS)

Measure total and variable resistance between specified TPS connector terminals. See TPS TEST TERMINALS table. Total resistance should be 3500-6500 ohms. Variable resistance should change smoothly between 3500 and 6500 ohms as throttle valve is moved from closed to wide open throttle.

ApplicationTerminals No.
Total Resistance
Eclipse 1.8L1 & 2
Eclipse 2.0L2 & 3
All Others1 & 4
Variable Resistance
Eclipse 1.8L2 & 3
Eclipse 2.0L3 & 4
Colt Vista, Expo/Expo LRV, Precis & Summit Wagon1 & 3
Montero, Pickup 3.0L & Ram-50 3.0L1 & 3
All Others2 & 4

TPS TEST TERMINALS

Application(2) Continuity
All Models4 Changes Per Revolution
(1) Measure continuity at back of speedometer. See WIRING DIAGRAMS article in the ENGINE PERFORMANCE Section. (2) With ECU connector disconnected, turn speedometer cable to cycle reed switch on and off.
(1)Measure continuity at back of speedometer. See WIRING DIAGRAMS article in the ENGINE PERFORMANCE Section.
(2)With ECU connector disconnected, turn speedometer cable to cycle reed switch on and off.

VEHICLE SPEED SENSOR CONTINUITY TEST (1)

Application(2) Volts
All Models
Ignition switch Off1 Or Less
Ignition switch On4.5-4.9
(1) Measure voltage at back of speedometer. See WIRING DIAGRAMS article in the ENGINE PERFORMANCE Section. (2) With ECU connector disconnected, turn speedometer cable to cycle reed switch on and off.
(1)Measure voltage at back of speedometer. See WIRING DIAGRAMS article in the ENGINE PERFORMANCE Section.
(2)With ECU connector disconnected, turn speedometer cable to cycle reed switch on and off.

VEHICLE SPEED SENSOR VOLTAGE TEST (1)