P0181: Engine Fuel Temperature Sensor A Circuit Range/Performance (Eft)
WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P0181 - ENGINE FUEL TEMPERATURE SENSOR A CIRCUIT RANGE/PERFORMANCE (EFT)
| Description: | The comprehensive component monitor (CCM) monitors the EFT temperature for acceptable operating temperature. If voltage falls below or exceeds a calibrated limit, for a calibrated amount of time during testing, the test fails. | ||
| Possible Causes: |
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| Diagnostic Aids: | Verify the EFT-PID value to determine an open or short. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| Fuel Rail Pressure Temperature (FRPT) Sensor | GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 73. | GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 73. | - |
| Fuel Rail Pressure AND Fuel Rail Temperature (FRT) Sensors | GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 34. | GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 34. | - |