P0187 OBD II Trouble Code Fuel Temperature Sensor B Circuit Low Input

Symptoms of P0187 OBD II Trouble Code

  • Possible MIL illumination
  • There may be no obvious symptoms
  • Other fuel composition codes may be present

Common Causes of P0187 OBD II Trouble Code

  • Faulty intake air temperature sensor
  • A bad ambient temperature sensor
  • Defective fuel temperature/composition sensor
  • Open, shorted, or damaged wiring or connectors
  • PCM or a PCM programing error

Severity of P0187 OBD II Trouble Code

Because flex fuel vehicles use fuel temperature to calculate fuel delivery strategy, this code should be treated as severe.