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.
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.
| Application & Terminals | Ohms |
|---|
| E2-Vc | 100-300 |
| E2-Vb | 200-400 |
| E1-Fc |
| Measuring Plate Fully Closed | No Continuity |
| Measuring Plate Fully Open | 0 |
| E2-Vs |
| Measuring Plate Fully Closed | 20-400 |
| Measuring Plate Fully Open | 20-1000 |
| 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 |
AIRFLOW METER RESISTANCE SPECIFICATIONS
| Application | (1) Ohms |
|---|
| Pickup, 4Runner | 2.0-4.0 |
| (1) Measure resistance between injector terminals. |
| (1) | Measure resistance between injector terminals. |
COLD START INJECTOR 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 |
COLD START INJECTOR TIME SWITCH RESISTANCE SPECIFICATIONS
Note. For coolant temperature sensor specifications (Scheme 1)
Scheme 1
| Temperature: °F (°C) | (1) KOhms |
|---|
| 122 (50) | 69.40-88.50 |
| 212 (100) | 11.89-14.37 |
| 302 (150) | 2.79-3.59 |
| (1) Measure resistance between sensor terminals. |
| (1) | Measure resistance between sensor terminals. |
EGR GAS TEMP SENSOR SPECIFICATIONS
| Application | (1) Ohms |
|---|
| Pickup, 4Runner | 13.4-14.2 |
| (1) Measured across terminals at 68°F (20°C). |
| (1) | Measured across terminals at 68°F (20°C). |
FUEL INJECTOR RESISTOR SPECIFICATIONS
| Application | Condition | (1) Ohms |
|---|
| Pickup |
| 22R-E | 68°F (20°C) | 5.1-6.3 |
| 3VZ-E |
| 2WD Except Cab & Chassis | 68°F (20°C) | 4.4-5.4 |
| All Others | 68°F (20°C) | 5.1-6.3 |
| 4Runner |
| 22R-E | 68°F (20°C) | 5.1-6.3 |
| 3VZ-E | 68°F (20°C) | 5.1-6.3 |
| (1) Measure resistance between terminals B+ and HT. |
| (1) | Measure resistance between terminals B+ and HT. |
OXYGEN SENSOR HEATER RESISTANCE SPECIFICATIONS
| Model/ Application | Clearance In. (mm) | Terminal Identification | Ohmmeter Reading |
|---|
| 22R-E | VTA & E2 | 0 (0) | 200-800 |
| " | " | Fully Open | 3300-10,000 |
| " | IDL & E2 | .022 (.56) | 2300 Or Less |
| " | " | .034 (.86) | No Continuity |
| " | VCC & E2 | N/A | 4000-9000 |
| 3VZ-E | VTA & E2 | 0 (0) | 200-800 |
| " | " | Fully Open | 3300-10,000 |
| " | IDL & E2 | .020 (.51) | 2300 Or Less |
| " | " | .030 (.76) | No Continuity |
| " | VCC & E2 | N/A | 4000-9000 |
TPS RESISTANCE SPECIFICATIONS
