Powertrain, generic (extended)

P2A1E Injection Pump Fuel Metering Control F (Cam/Rotor/Injector)

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2A1E is the general fault of the sixth fuel metering element, F – the last letter of this code family. The control module stores it for a failure of that element that it cannot pin down as a plausibility (P2A1F), low (P2A20) or high (P2A21) fault. Six individually metered elements would fit, for example, a six-cylinder engine with one pumping unit or unit injector per cylinder. Volvo and Mack, whose 13 litre truck engines use three cam-driven pumping injectors on a common rail, name element F in service bulletins, but only with the range/performance code P2A1F. No source describes P2A1E itself; the CARB rules for fuel system and electrical components set the frame. Typical consequences are a warning lamp and derated power.

Likely causes

Wiring or connector fault in the circuit of element F
Pumping unit, valve or injector solenoid of element F defective
Engine control module fault

Symptoms

  • Check engine light on
  • Derated power
  • Uneven running

Repair estimate

DifficultyHardWorkshop job
Parts and labour€100–3,000
Time0.5–8 h

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

Parts involved

injection pump metering finjection pumpwiring harness

Related codes

P2A1FP2A20P2A21P2A1AP2A16

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