This Pinpoint Test is intended to diagnose the following:
Fuel Rail Pressure (FRP) Sensor (9F972)
Harness Circuits: FRP and SIG RTN
Powertrain Control Module (PCM) (12A650)
Tables and Graphs
Voltage values were calculated for VREF = 5.0 volts. These values may vary 15 percent due to sensor and VREF variations.
Natural Gas Vehicles
Natural Gas Vehicles - FUEL RAIL PRESSURE SENSOR VOLTAGE AND PRESSURE SPECIFICATIONS
Gasoline Vehicles
Gasoline Vehicles - FUEL RAIL PRESSURE SENSOR EXPECTED VOLTAGE
Pinpoint Test Schematics and Connectors
Gasoline Vehicles
NG Vehicles
WARNING
VEHICLE FUEL SYSTEMS ARE PRESSURIZED EVEN WHEN THE ENGINE IS NOT RUNNING. TO AVOID FIRE OR PERSONAL INJURY, DISABLE THE FUEL DELIVERY SYSTEM AND RELIEVE FUEL SYSTEM PRESSURE BEFORE REMOVING ANY FUEL SYSTEM COMPONENT. REFER GASOLINE VEHICLES TO SECTION HC, NATURAL GAS SECTION HB
