Sensor Operating Range Charts: Notes

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 section.

AIRFLOW METER HERTZ TEST ⁽¹⁾

Condition

Diamante

700 RPM

21-47

2000 RPM

57-97

Montero

SOHC - 12 Valve

700 RPM

22-48

2000 RPM

60-100

SOHC (California) - 24 Valve

700 RPM

25-51

2500 RPM

68-108

SOHC (Federal) - 24 Valve

700 RPM

25-51

2500 RPM

74-124

Stealth & 3000GT

SOHC

700 RPM

21-47

2000 RPM

57-97

DOHC (Non-Turbo)

700 RPM

22-48

2000 RPM

50-90

DOHC (Turbo)

700 RPM

22-48

2000 RPM

68-108

⁽¹⁾	Measure hertz frequency with Multi-Use Tester (MUT-II).

COOLANT TEMPERATURE SENSOR RESISTANCE

Application & Temperature °F (°C)	Ohms
32 (0)	5800
68 (20)	2400
104 (40)	1100
176 (80)	300

EGR TEMPERATURE SENSOR RESISTANCE TEST ⁽¹⁾⁽²⁾

Application & 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.

INTAKE AIR TEMPERATURE SENSOR RESISTANCE

Application & Temperature °F (°C)	Ohms
32 (0)	6000
68 (20)	2700
176 (80)	400

OXYGEN SENSOR VOLTAGE TEST ⁽¹⁾

Application

Volts

Lean

0.6

Rich

1.0

⁽¹⁾	Test at normal operating temperature.