LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1784 (Engine Controls - Powertrain DTC Charts And Descriptions (Except Diesel & Hybrid)) >> DTC Diagnosis >> P0190 - Fuel Rail Pressure Sensor A Circuit

P0190 - Fuel Rail Pressure Sensor A Circuit

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2007 Mercury Mountaineer, 2007 Mercury Monterey, 2007 Mercury Montego, 2007 Mercury Milan, and 2007 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
P0190 - FUEL RAIL PRESSURE SENSOR A CIRCUIT

Description:  The comprehensive component monitor (CCM) monitors the fuel rail pressure (FRP) sensor to the powertrain control module (PCM) for VREF voltage. The test fails when the VREF voltage from the PCM drops to a voltage less than a minimum calibrated value.
Possible Causes: 
  • VREF open in harness
  • VREF open in sensor
  • Vacuum leaks
Diagnostic Aids:  Verify a VREF voltage between 4 and 6 volts.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - - refer to PINPOINT TEST DD .
scientia non olet · About LEMON Manuals