Car Problem Reports

Ford Fusion Hybrid Check Engine Light With Code P0400

Ford Fusion Hybrid Problem
7 Reports
Me Too

Model Year Affected: 2010

Average Mileage: 58,470 mi (41,000 mi - 91,000 mi)


The Check Engine Light may illuminate with code P0400 stored for an exhaust gas recirculation (EGR) fault. Our technicians tell us if no EGR system faults are noted, updated powertrain control module (PCM) is available which should correct this issue.

  • , , 42,000 mi

    I took the car to Pep Boys for a free check engine scan and they reported the problem as PO400. After the scan the light turned off on its own.

    Flag This
  • , , 60,500 mi

    "Service engine soon" light came on just prior to a routine oil/filter hooked up to the OBD-II, reported the code...quick lookup on the internet suggested this was likely a common issue, no other problems were evident, so I simply had the tech reset the computer. Will note the interval if it comes on again.

    Flag This
  • , , 53,121 mi

    Failed emission testing with a code of p0400.

    Flag This
Ask a Question