1999 PCED On Board Diagnostics II
SECTION 5: Pinpoint Tests
DD: Fuel Rail Pressure (FRP) Sensor
Introduction
  DD: Pinpoint Tests  

Note

This Pinpoint Test is intended to diagnose the following:

Tables and Graphs



 FUEL RAIL PRESSURE SENSOR TEST INFORMATION CHART

Part Number 9F972 Resistance (Ohms) FRP pin to VREF pin Resistance (Ohms) FRP pin to SIG RTN pin Resistance (Ohms) VREF pin to SIG RTN pin Part Supplier Application
F6AF-BA 3.5 M 3.5 M 3.7 K H Natural Gas
F6AF-BB 3.5 M 3.5 M 3.7 K H Natural Gas
F6AZ-BA 3.5 M 3.5 M 3.7 K H Natural Gas
F8AF-AA 3.5 M 3.5 M 3.7K H Natural Gas
F8AF-AB 3.5 M 3.5 M 3.7 K H Natural Gas
F8AZ-AB 3.5 M 3.5 M 3.7 K H Natural Gas
F8CF-BF 22 K - 30 K 22 K - 30 K .8 - 1.4 K M Gasoline
F8CF-BH 22 K - 30 K 22 K - 30 K .8 - 1.4 K M Gasoline
XW4F-BB 22 K - 30 K 22 K - 30 K .8 - 1.4 K M Gasoline
XW4F-AD 22 K - 30 K 22 K - 30 K .8 - 1.4 K M Gasoline
XS2F-DD N/A 3.2 K - 5.5 K 5.3 K - 6.6 K V Gasoline
XS2F-EA N/A 3.2 K - 5.5 K 5.3 K - 6.6 K V Gasoline
XS2F-FA N/A 3.2 K - 5.5 K 5.3 K - 6.6 K V Gasoline

Fuel Rail Pressure Sensor supplier key:

H=Hi-Stat

M=Motorola

V=Visteon


Voltage values were calculated for VREF = 5.0 volts. These values may vary 15 percent due to sensor and VREF variations.

Natural Gas Vehicles





 FUEL RAIL PRESSURE SENSOR VOLTAGE AND PRESSURE SPECIFICATIONS

Fuel Rail Pressure (FRP) Sensor
Voltage (dcv) Pressure (psi) Pressure (kPa)
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 37.6 259

Gasoline Vehicles





 FUEL RAIL PRESSURE SENSOR EXPECTED VOLTAGE

Voltage (dcv) Pressure (kPa) Pressure (psi)
4.5 482 70
3.9 413 60
3.4 344 50
2.8 275 40
2.2 207 30
1.6 138 20
1.1 69 10
0.5 0 0

Pinpoint Test Schematics and Connectors

Gasoline Vehicles



NG Vehicles



 

 

  DD: Pinpoint Tests