Powertrain, generic (extended)

P2BEF Fuel Control System A Too Rich Bank 2

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

P2BEF says that the engine module has had to take away a lot of fuel on bank 2 while direct injection alone was supplying the cylinders. Ford sets it on port-plus-direct engines when long-term trim on that bank drops past minus 25 percent while short-term trim keeps subtracting more than 1 percent; two seconds in closed loop are enough. Because the common rich fault P0175 is reserved for enrichment seen in every mode, P2BEF points at the DI hardware of bank 2: a direct injector that sticks open or seeps after shutdown, or a rail pressure reading that is too low so the pump overshoots. On 2019 and 2020 F-150 2.7 L EcoBoost trucks built until 4 July 2020, Ford bulletins 20-2257 and 21-2045 cure this code, together with the other fuel-trim codes, by reprogramming the PCM.

Likely causes

Known PCM software issue on 2019-2020 F-150 2.7 L
Direct injector on bank 2 sticking open or seeping
Rail pressure sensor reading too low, pressure actually too high

Symptoms

  • Check engine light on
  • Rough running after a hot restart
  • Increased fuel use

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€80–2,000
Time0.3–5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

fuel injectorsfuel pressure regulatorintake system

Related codes

P2BEDP2BEEP2BF3P0175

References: fordservicecontent.com, static.nhtsa.gov, static.nhtsa.gov, law.cornell.edu.