Powertrain, generic (extended)

P2BED Fuel Control System A Too Rich Bank 1

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

P2BED is the rich counterpart of P2BEC: bank 1 has to remove fuel, but only while the engine is fed by direct injection, which Ford calls fuel system A on its port-plus-direct engines. The Ford monitor runs continuously in closed loop and reacts when long-term trim has pulled more than 25 percent and short-term trim keeps pulling beyond 1 percent for 2 seconds; purge must be off, so a saturated canister is not the reason. A rich bank in all modes is P0172 instead. For the 2018 F-150 2.7 L EcoBoost, Ford bulletin 20-2324 names leaking direct injectors: if, after a warm idle and shutdown, rail pressure decays under 10 psi in less than 30 seconds, all six DI injectors are replaced. Later 2.7 L trucks built up to July 2020 get new PCM software (20-2257, 21-2045).

Likely causes

Direct injector leaking or dribbling on bank 1
PCM software fault, Ford reprogramming bulletins
Rail pressure above target because of a faulty volume regulator or pressure sensor

Symptoms

  • Check engine light on
  • Long cranking or rough running right after a hot start
  • Fuel smell from the exhaust, higher consumption
  • Misfire codes on the same bank in some cases

Repair estimate

DifficultyHardWorkshop 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

P2BECP2BEFP2BF1P0172P0088

References: fordservicecontent.com, static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov.