P0187 2000 Ford F150 Code - Engine Fuel Temperature Sensor B Circuit Low Input

The code P0187 indicates that the Engine Fuel Temperature Sensor B has detected a low input, suggesting that the voltage or resistance input from the sensor is below the expected range set by the manufacturer.

Common symptoms include a check engine light, decreased fuel efficiency, possible stalling or difficulty starting the engine, and potentially a noticeable drop in engine performance.

Possible causes include faulty or damaged fuel temperature sensor, poor electrical connections at the fuel temperature sensor, or a short in the wiring harness connected to the sensor.

Diagnosis typically involves using an OBD-II scanner to verify the code, visually inspecting the wiring and connectors, and testing the fuel temperature sensor with a multimeter to check for proper voltage and resistance.

Repairs might include replacing the faulty fuel temperature sensor, repairing or replacing damaged wiring or connectors, or addressing any other electrical issues found during the diagnostic process.

While it may be safe to drive for short distances, it's advisable to address the issue promptly as it can affect the fuel efficiency and overall performance of the engine, potentially leading to further complications.

It is moderately urgent to address this code. Delaying repairs can lead to reduced engine performance and increased fuel consumption, which may cause additional strain on the engine components over time.

Yes, this code can affect fuel economy. The engine control module may not be able to accurately calculate the correct fuel-to-air ratio if it's receiving incorrect data from the fuel temperature sensor, leading to inefficient fuel usage.

While unlikely to cause immediate engine damage, prolonged operation with a faulty sensor can lead to inefficiencies and strain on the engine, potentially leading to more serious issues over time.