Powertrain, generic (extended)

P2B19 Cylinder 5 Injection Pulse Offset Exceeded Learning Limit

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

P2B19 flags injector 5: its learned zero-fuel offset exceeds the calibrated limit. Ford's diesel OBD summary groups the code with the other odd numbers from P2B11 to P2B1F under the Zero Fuel Calibration monitor, which it files under fuel system feedback control. One distinct trigger is altitude: special service message 53340 covers 2020–2025 F-Super Duty 6.7 L trucks that store these codes when driven above 762 m (2,500 ft). The first step is the service function that clears the minimum fuel mass adaptions of all cylinders with Ford's FDRS tool; Ford told dealers a permanent fix was planned for the second quarter of 2025. CARB counts a fuel feedback loop that has used up its authority as a fault under (f)(4.2.4)(A)(iii).

Likely causes

Learned values skewed by driving above about 760 m (Ford SSM 53340)
Injector 5 with changed opening behaviour
PCM software without the later calibration fix

Symptoms

  • Check engine light after mountain or high-plateau driving
  • Possibly slightly rough idle

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–2,500
Time0.3–6 h

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

Parts involved

fuel injector cylinder 5engine control module

Related codes

P2B18P2B17P2B1BP0275P02D4P02D5

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