Powertrain, generic (extended)

P262A Fuel Injector - Pilot Injection Not Learned

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modeNo

Common-rail diesels learn how long each injector must be energised to deliver its tiny pilot shot. Ford's 6.7 L Power Stroke does this with Zero Fuel Calibration: during overrun with rail pressure set to 300 bar, one injector fires small test pulses and the resulting rise in crankshaft speed tells the module the real quantity; the learned offset then corrects every pilot injection of that injector. P262A means the routine kept failing to learn. The 2013 Ford summary sets it after 100 s of valid conditions without a learned value (890-1,610 rpm, gears 4-6, converter locked, coolant at least 50 °C); the 2017 edition counts 30 attempts of 0.8 s or more. P02CC-P02DB cover offsets at their limits. CARB requires faults in pilot-quantity feedback control to be detected.

Likely causes

Driving pattern rarely offers long overrun phases in high gear (towing, city use)
Injector drift or wear so the test pulse does not give a usable response
Disturbed crankshaft speed or rail pressure signal
Non-original engine calibration interfering with the learning routine

Symptoms

  • Check engine light
  • Louder combustion knock, especially at idle and light load
  • Often no noticeable change in driveability

Repair estimate

DifficultyHardWorkshop job
Parts and labour€0–2,500
Time0.5–6 h

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

Parts involved

fuel injectorcrankshaft position sensorengine control module

Related codes

P02CCP02CDP02DAP2B11

References: fordservicecontent.com, fordservicecontent.com, law.cornell.edu.