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Home >> Ford >> 2012 >> Explorer Base, 2.0 9 >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Engine Controls - Powertrain DTC Charts & Descriptions (Diesel)) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> DTC P218F: REDUCTANT No Flow Detected

DTC P218F: REDUCTANT No Flow Detected

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
DTC P218F: REDUCTANT NO FLOW DETECTED

Description:  The PCM monitors selective catalytic reduction (SCR) system performance by monitoring the rate of reductant flow and feedback from the nitrogen oxides bank 1, sensor 2 (NOx12) sensor. These values are compared to a calculated model. This DTC sets when the difference between the modeled and actual system performance exceeds a threshold and a restriction in the SCR system is suspect.
Possible Causes: 
  • Reductant pressure line restriction
  • Reductant filter restriction
  • Reductant injector restriction
Diagnostic Aids:  The presence of this DTC may indicate that the vehicle is operating in derate mode and may experience a loss of power. After repair, the vehicle may still display a system warning message. Drive the vehicle until the system warning message has cleared from the instrument cluster message center.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST RK .