Diagnostic Aids
Perform this test when directed by QUICK TEST. This test is intended to diagnose the following:
- FRP Sensor
- Wiring Harness Circuits (FRP & SIG RTN)
- Powertrain Control Module (PCM)
FRP SENSOR VOLTAGE-TO-FUEL PRESSURE CONVERSION
| Volts | psi (kPa) | |
|---|---|---|
| Natural Gas Vehicles | ||
| 4.5 | 150 (1034) | |
| 4.1 | 140 (965) | |
| 3.7 | 130 (896) | |
| 3.3 | 120 (827) | |
| 2.9 | 110 (758) | |
| 2.5 | 100 (689) | |
| 2.1 | 90 (620) | |
| 1.7 | 80 (551) | |
| 1.3 | 70 (482) | |
| 0.9 | 60 (413) | |
| 0.5 | 50 (344) | |
| 0.1 | 40 (275) | |
| 0.0 | 37.5 (258.56) | |
| Except Natural Gas Vehicles | ||
| 4.5 | 70 (482) | |
| 3.9 | 60 (413) | |
| 3.4 | 50 (344) | |
| 2.8 | 40 (275) | |
| 2.2 | 30 (207) | |
| 1.6 | 20 (138) | |
| 1.1 | 10 (69) | |
| 0.5 | 0.0 (0.0) | |