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.
| Vacuum: In. Hg. | (2) Volts |
|---|
| 0 | 3.84 |
| 5 | 3.36 |
| 10 | 2.66 |
| 15 | 1.93 |
| 20 | 1.26 |
| 25 | .58 |
| (1) Measure voltage between breakout box test pins BP and SIGRTN on Capri, or between test pins BP and GND on Festiva. (2) Voltage may vary by plus or minus 15 percent. |
| (1) | Measure voltage between breakout box test pins BP and SIGRTN on Capri, or between test pins BP and GND on Festiva. |
| (2) | Voltage may vary by plus or minus 15 percent. |
BAROMETRIC PRESSURE SENSOR OUTPUT VOLTAGE (1)
| Temperature °F (°C) | Ohms |
|---|
| 4 (-20) | 14,600-17,800 |
| 68 (20) | 2200-2700 |
| 104 (40) | 1000-1300 |
| 140 (60) | 500-650 |
| 176 (80) | 290-350 |
| (1) Measure resistance between breakout box test pins ECT and SIGRTN on Capri, or between test pins ECT and GND on Festiva. |
| (1) | Measure resistance between breakout box test pins ECT and SIGRTN on Capri, or between test pins ECT and GND on Festiva. |
ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE (1)
| RPM | Volts |
|---|
| 500 | 1.103 |
| 1000 | 1.257 |
| 1500 | 1.542 |
| 2000 | 1.768 |
| 2500 | 2.06 |
| 3000 | 2.15 |
| 3500 | 2.26 |
| 4000 | 2.50 |
| 4500 | 2.47 |
| 5000 | 2.40 |
| (1) Measure voltage between breakout box test pins IDM and VPWR. |
| (1) | Measure voltage between breakout box test pins IDM and VPWR. |
IGNITION DIAGNOSTIC MONITOR VOLTAGE (1)
| Throttle Opening | (2) (3) Ohms | (2) (3) Volts |
|---|
| 1/8 | 989 | .998 |
| 1/4 | 1104 | 1.60 |
| 3/8 | 1278 | 2.37 |
| 1/2 | 1462 | 2.74 |
| 5/8 | 1480 | 3.15 |
| 3/4 | 1459 | 3.43 |
| 7/8 | 1144 | 3.60 |
| Fully Open | 1072 | 4.02 |
| (1) Measure resistance and voltage between breakout box test pins TP and SIGRTN on Capri. (2) Capri only. Festiva uses throttle position switch. (3) Resistance and voltage may vary by plus or minus 15 percent. |
| (1) | Measure resistance and voltage between breakout box test pins TP and SIGRTN on Capri. |
| (2) | Capri only. Festiva uses throttle position switch. |
| (3) | Resistance and voltage may vary by plus or minus 15 percent. |
THROTTLE POSITION SENSOR RESISTANCE & VOLTAGE (1)
| Door Opening | (2) (3) Volts |
|---|
| 1/8 | 3.24 |
| 1/4 | 5.60 |
| 3/8 | 5.62 |
| 1/2 | 5.83 |
| 5/8 | 6.02 |
| 3/4 | 6.57 |
| 7/8 | 7.46 |
| Fully Open | 7.87 |
| (1) Measure voltage between breakout box test pins VAF and SIGRTN on Capri, or between test pins VAF and GND on Festiva. (2) Capri only. On Festiva, voltage should vary smoothly from .5-1.5 volts with door fully open, to 4.5-5 volts with door fully closed. (3) Voltage may vary by plus or minus 15 percent. |
| (1) | Measure voltage between breakout box test pins VAF and SIGRTN on Capri, or between test pins VAF and GND on Festiva. |
| (2) | Capri only. On Festiva, voltage should vary smoothly from .5-1.5 volts with door fully open, to 4.5-5 volts with door fully closed. |
| (3) | Voltage may vary by plus or minus 15 percent. |
VANE AIRFLOW METER VOLTAGE (1)
| Temperature °F (°C) | (2) Ohms |
|---|
| 4 (-20) | 15,000 |
| 32 (0) | 5200 |
| 68 (20) | 2500 |
| 104 (40) | 1100 |
| 140 (60) | 600 |
| 176 (80) | 300 |
| (1) Measure resistance between breakout box test pins VAT and SIGRTN on Capri, or between test pins VAT and GND on Festiva. (2) Resistance may vary by plus or minus 15 percent |
| (1) | Measure resistance between breakout box test pins VAT and SIGRTN on Capri, or between test pins VAT and GND on Festiva. |
| (2) | Resistance may vary by plus or minus 15 percent |
VANE AIR TEMPERATURE RESISTANCE (1)
