Sensor Operating Specifications

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

AIRFLOW METER RESISTANCE SPECIFICATIONS

Terminals		Ohms
E2-Vs
Measuring Plate Fully Closed		200-600
Measuring Plate Fully Open		20-1200
E2-THA
-4°F (20°C)		10,000-20,000
32°F (0°C)		4000-7000
68°F (20°C)		2000-3000
104°F (40°C)		900-1300
140°F (60°C)		400-700

NOTE: On Non-Turbo models, air temperature sensor is mounted on airflow meter. On Turbo models, air temperature sensor is integral part of airflow meter. For Non-Turbo air temperature sensor specifications, see Fig 1.

Fig 1: Air Temperature Sensor Specifications Chart (Non-Turbo)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

COLD START INJECTOR RESISTANCE SPECIFICATIONS

Application

⁽¹⁾ Ohms

All Engines

2.0-4.0

⁽¹⁾	Measure resistance between injector terminals.

COLD START INJECTOR TIME SWITCH RESISTANCE SPECIFICATIONS

Terminals	Temperature: °F (°C)	Ohms
STA-STJ	Less Than 50 (10)	30-50
"	Greater Than 77 (25)	70-90
STA-Ground	N/A	30-90

NOTE: For coolant temperature sensor specifications, see Fig 2.

Fig 2: Coolant Temperature Sensor Specifications

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

EGR GAS TEMP SENSOR SPECIFICATIONS

Temperature: °F (°C)

⁽¹⁾ Ohms

122 (50)

69-89

212 (100)

12-14

302 (150)

3-4

⁽¹⁾	Measure resistance between sensor terminals.

FUEL INJECTOR RESISTOR SPECIFICATIONS

Application

⁽¹⁾ Ohms

Turbo

2.0-4.0

Non-Turbo

Approx. 13.8

⁽¹⁾	Measured across terminals at 68°F (20°C).

ISC VALVE RESISTANCE SPECIFICATIONS

Application

Ohms

3S-GTE ⁽¹⁾

18-24

5S-FE ⁽²⁾

19-22

⁽¹⁾	Measure resistance between terminals +B to RSC or RSO.

⁽²⁾	Measure resistance between terminals +B to ISCC or ISCO.

OXYGEN SENSOR HEATER RESISTANCE SPECIFICATIONS ⁽¹⁾

Application

Condition

Ohms

4A-FE Federal, 3S-GTE

68°F (20°C)

5.1-6.3

⁽¹⁾	Measure resistance between terminals B+ and HT.

TPS RESISTANCE SPECIFICATIONS

Model/ Application	Clearance In. (mm)	Terminal Identification	Ohmmeter Reading
1.6L	IDL & E2	.024 (.60)	Continuity
"	"	.031 (.80)	No Continuity
"	"	Fully Open	No Continuity
"	PSW & E2	.024 (.60)	No Continuity
"	"	.031 (.80)	No Continuity
"	"	Fully Open	Continuity
2.0L	IDL & E2	.020 (.51)	2300 Or Less
"	"	.028 (.71)	No Continuity
"	VTA & E2	0 (0)	200-800
"	"	Fully Open	3300-10,300
"	VC & E2	N/A	3000-8300
2.2L W/O ECT	IDL & E2	.020 (.50)	Continuity
"	"	.035 (.90)	No Continuity
"	"	Fully Open	No Continuity
"	PSW & E2	.020 (.50)	No Continuity
"	"	.031 (.80)	No Continuity
"	"	Fully Open	Continuity
2.2 W/ECT	IDL & E2	.020 (.51)	2300 Or Less
"	"	.028 (.71)	No Continuity
"	VTA & E2	0 (0)	200-800
"	"	Fully Open	3300-10,300
"	VC & E2	N/A	3000-7000

TURBO PRESSURE SENSOR SPECIFICATIONS

Applied Vacuum: In. Hg

⁽¹⁾ Voltage Drop

3.94

.15-.35

7.87

.40-.60

11.81

.65-.85

15.75

.90-1.10

19.69

1.15-1.35

⁽¹⁾	Voltage drop is from measured voltage of pressure sensor (harness connector terminals VC and E2). Measure voltage between ECU connector terminals PIM and E2. See I - SYS/COMP TESTS article in this section.

VACUUM SENSOR SPECIFICATIONS ⁽¹⁾

Vacuum: In. Hg

⁽²⁾ Voltage Drop

3.94

.3-.5

7.87

.7-.9

11.81

1.1-1.3

15.75

1.5-1.7

19.69

1.9-2.1

⁽¹⁾	Vacuum sensor is also known as MAP sensor.

⁽²⁾	Voltage drop is from measured voltage of pressure sensor (harness connector terminals VCC and E2). Measure voltage between ECU connector terminals PIM and E2. See I - SYS/COMP TESTS article in the ENGINE PERFORMANCE Section.