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.
| Temperature °F (°C) | Resistance (Ohms) |
|---|
| -4 (-20) | 15,000-18,000 |
| 68 (20) | 2000-4000 |
| 176 (80) |
| Integra | 200-400 |
| Legend | 300-400 |
| (1) Measure resistance across sensor terminals. |
| (1) | Measure resistance across sensor terminals. |
COOLANT TEMP (TW) SENSOR RESISTANCE TEST (1)
| Application | Resistance (Ohms) |
|---|
| Integra |
| CRANK Sensor | 350-700 |
| CYL Sensor | 350-700 |
| TDC Sensor | 350-700 |
| Legend |
| CRANK Sensor | 600-950 |
| CYL Sensor | 600-950 |
| (1) See appropriate SYSTEM/COMPONENT TESTS article in the ENGINE PERFORMANCE Section to identify sensor terminals. |
| (1) | See appropriate SYSTEM/COMPONENT TESTS article in the ENGINE PERFORMANCE Section to identify sensor terminals. |
DISTRIBUTOR SENSORS RESISTANCE TEST (1)
| Position | Approximate Volts |
|---|
| Fully Closed | 1.0 |
| Fully Open | 4.5 |
| (1) On Integra, measure voltage between terminals C8 (positive) and C12 (negative). On Legend, measure voltage between terminals D12 (positive) and D22 (negative). Voltage should increase smoothly as vacuum is applied. |
| (1) | On Integra, measure voltage between terminals C8 (positive) and C12 (negative). On Legend, measure voltage between terminals D12 (positive) and D22 (negative). Voltage should increase smoothly as vacuum is applied. |
EGR LIFT SENSOR VOLTAGE TEST (1)
| Temperature °F (°C) | Resistance (Ohms) |
|---|
| -4 (-20) | 15,000-18,000 |
| 68 (20) | 2000-4000 |
| 176 (80) |
| Integra | 200-400 |
| Legend | 300-400 |
| (1) Measure resistance across sensor terminals. |
| (1) | Measure resistance across sensor terminals. |
INTAKE AIR TEMPERATURE (TA) SENSOR RESISTANCE TEST (1)
| Vacuum Applied (In. Hg) | Volts |
|---|
| 0 | 2.8-3.0 |
| 5 | 2.3-2.5 |
| 10 | 1.8-2.0 |
| 15 | 1.3-1.5 |
| 20 | .8-1.0 |
| 25 | .3-.5 |
| (1) On Integra, measure voltage between ECU terminals C11 (positive) and C12 (negative). On Legend, measure voltage between ECU terminals D17 (positive) and D21 (negative) |
| (1) | On Integra, measure voltage between ECU terminals C11 (positive) and C12 (negative). On Legend, measure voltage between ECU terminals D17 (positive) and D21 (negative) |
MAP SENSOR VOLTAGE TEST (1)
| Condition | Volts |
|---|
| Lean | .1 |
| Rich | .9 |
| (1) Measure voltage between ground and O2 sensor terminal using a high- impedance DVOM. |
| (1) | Measure voltage between ground and O2 sensor terminal using a high- impedance DVOM. |
OXYGEN SENSOR VOLTAGE TEST (1)
| Position | Approximate Volts |
|---|
| Fully Closed | .1-.5 |
| Fully Open | 4.5-4.8 |
| (1) On Integra, measure resistance between terminals C7 (positive) and C12 (negative). On Legend, measure resistance between terminals D11 (positive) and D22 (negative). Voltage should increase smoothly as throttle is opened. |
| (1) | On Integra, measure resistance between terminals C7 (positive) and C12 (negative). On Legend, measure resistance between terminals D11 (positive) and D22 (negative). Voltage should increase smoothly as throttle is opened. |
THROTTLE ANGLE SENSOR VOLTAGE TEST (1)
