P20E8 FORD code

OBD Code P20E8 – Reductant Pressure Too Low If the engine control module would detect a variation in the reductant pressure as the system primes for injection delivered performance that is outside the parameters set by the automobile manufacturer, then it would store the P20E8 fault code.

What does code P20E8 mean?

P20E8 OBD-II: Reductant Pressure Too Low. What does OBD-II fault code P20E8 mean? OBD-II Code Powertrain Control Module (PCM) failure is defined as a Reductant Pressure Too Low. Diesel Exhaust Fluid (DEF) is used to assist in converting leftover exhaust particles to harmless gases.

What is a reductant pressure sensor?

The Reductant Pressure Sensor is used to monitor and control the amount of DEF the Reductant Pump is putting out. If the Reductant Pressure Sensor sends back an implausible signal, code P204B is set.

What is a reductant pump?

The Reductant Pump transfers the DEF (Diesel Exhaust Fluid) from the tank to the DEF Injector. If the Reductant Pump fails to perform as requested by the engine computer (PCM), code P208A will be stored.

How do you prime a Ford DEF pump?

Using the supplied 30cc syringe and a new, clean container of DEF, fill the syringe at least half full. Insert the nozzle of the filled syringe into the inlet port on the bottom of the pump. Slowly push the plunger of the syringe to force the clean DEF into the pump until the syringe is empty (refer to Photo 1).

How do I fix my p20e8 code?

How To Correct Reductant Pressure Too Low Issue

  1. You must fix the defective reductant pump.
  2. Make sure to mend the faulty reductant injector.
  3. It is essential to restore the flawed reductant purge valve.
  4. Repair or replace the quirky reductant pressure line.
  5. Rehabilitate the defaults in the reductant pressure sensor.

What does code P203F mean?

The Reductant Level Sensor tells the engine computer (PCM) how much DEF is left in the tank. If the PCM sees that the DEF level is too low, code P203F is set. Additional warnings may be present on the instrument cluster. Failure to add DEF fluid may result in the engine not restarting until more DEF fluid is added.