DIFFERENTIAL PRESSURE FEEDBACK EGR (DPFE) SENSOR
| Pressure (psi) | In. Hg | (1) Volts |
|---|
| 4.34 | 8.83 | 4.56 |
| 3.25 | 6.62 | 3.54 |
| 2.17 | 4.41 | 2.51 |
| 1.08 | 2.21 | 1.48 |
| 0 | 0 | 0.5 |
| (1) Voltage specifications are calculated for a VREF equaling 5 volts. Specification may differ by as much as 15 percent. See CIRCUIT TEST HE in the TESTS W/CODES - 5.4L article for further testing. |
| (1) | Voltage specifications are calculated for a VREF equaling 5 volts. Specification may differ by as much as 15 percent. See CIRCUIT TEST HE in the TESTS W/CODES - 5.4L article for further testing. |
DPFE SENSOR SPECIFICATIONS
ENGINE FUEL TEMPERATURE (EFT) SENSOR
| Temperature °F (°C) | (1) Volts | (1) Ohms |
|---|
| 50 (10) | 3.51 | 58,750 |
| 68 (20) | 3.07 | 27,300 |
| 86 (30) | 2.60 | 24,270 |
| 104 (40) | 2.13 | 16,150 |
| 122 (50) | 1.70 | 10,970 |
| 140 (60) | 1.33 | 7700 |
| 158 (70) | 1.02 | 5370 |
| 176 (80) | 0.78 | 3840 |
| 194 (90) | 0.60 | 2800 |
| 212 (100) | 0.46 | 2070 |
| 248 (120) | 0.27 | 1180 |
| (1) Values may vary by 15 percent. |
| (1) | Values may vary by 15 percent. |
EFT SENSOR SPECIFICATIONS
HEATED OXYGEN SENSOR (HO2S)
| Condition | (1) Voltage |
|---|
| Rich | Increases |
| Lean | Decreases |
| (1) Measure between oxygen sensor connector and ground. Voltage should toggle above and below 0.45 volt when system in closed loop. See the TESTS W/CODES - 5.4L article for terminal identification. |
| (1) | Measure between oxygen sensor connector and ground. Voltage should toggle above and below 0.45 volt when system in closed loop. See the TESTS W/CODES - 5.4L article for terminal identification. |
INJECTION PRESSURE (IP) SENSOR
| Voltage (DC) | Pressure (psi) |
|---|
| 4.5 | 150 |
| 4.1 | 140 |
| 3.7 | 130 |
| 3.3 | 120 |
| 2.9 | 110 |
| 2.5 | 100 |
| 2.1 | 90 |
| 1.7 | 80 |
| 1.3 | 70 |
| 0.9 | 60 |
| 0.5 | 50 |
| 0.1 | 40 |
| 0.0 | 37.5 |
IP SENSOR VOLTAGE-TO-FUEL PRESSURE CONVERSION CHART
MASS AIRFLOW (MAF) SENSOR
| Engine Condition (1) | (2) Volts |
|---|
| Idle | 0.8 |
| 20 MPH | 1.0 |
| 40 MPH | 1.7 |
| 60 MPH | 2.1 |
| (1) Engine at normal operating temperature. (2) Voltage may vary depending on vehicle load and temp. See the TESTS W/CODES - 5.4L article for terminal identification. |
| (1) | Engine at normal operating temperature. |
| (2) | Voltage may vary depending on vehicle load and temp. See the TESTS W/CODES - 5.4L article for terminal identification. |
MAF SENSOR SPECIFICATIONS
TRANSMISSION RANGE (TR) SENSOR
| Selector Position | (1) Ohms |
|---|
| Park | 3770-4607 |
| Reverse | 1304-1593 |
| Neutral | 660-807 |
| Overdrive | 361-442 |
| Second/Drive | 190-232 |
| First | 78-95 |
| (1) Values may differ by as much as 15 percent. Measure between Gray/Red and Light Blue/Yellow wires at TR sensor with transmission selector in specified position. |
| (1) | Values may differ by as much as 15 percent. Measure between Gray/Red and Light Blue/Yellow wires at TR sensor with transmission selector in specified position. |
THROTTLE POSITION SENSOR
| Throttle Angle | (1) Volts |
|---|
| 0° | .65 |
| 10° | .97 |
| 20° | 1.44 |
| 30° | 1.90 |
| 40° | 2.37 |
| 50° | 2.84 |
| 60° | 3.31 |
| 70° | 3.78 |
| 80° | 3.90 |
| (1) Values may vary by 15 percent. For testing, refer CIRCUIT TEST DH in TESTS W/CODES - 5.4L article. |
| (1) | Values may vary by 15 percent. For testing, refer CIRCUIT TEST DH in TESTS W/CODES - 5.4L article. |
