Powertrain, generic (extended)

P2A13 Injection Pump Fuel Metering Control C Range/Performance (Cam/Rotor/Injector)

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

P2A13 flags metering element C of a diesel injection system as implausible: its circuit is electrically intact, yet the quantity or pressure it is supposed to produce does not follow the engine control module's command. The letter C stands for a third element – a further metering valve, a cam-driven pump plunger or a unit injector with its own solenoid. No manufacturer publishes P2A13. Volvo and Mack list this fault type for elements B, D and F on their 11 and 13 litre truck engines of the US17 emissions level, where it traced back to the rail pressure system or a slipping cam lobe. For C, the heavy-duty rule 13 CCR 1971.1 on injection quantity and pressure control is the basis. P2A14 and P2A15 cover low and high electrical readings. Output is usually derated.

Likely causes

Fault in the high-pressure system (leak, relief valve, low-pressure supply) that the element cannot compensate
Worn or sticking metering element C (valve, plunger or cam lobe)
Outdated engine control software or calibration

Symptoms

  • Check engine light on
  • Lack of power, especially under load
  • Engine power derated by the control module

Repair estimate

DifficultyHardWorkshop job
Parts and labour€150–4,000
Time1–8 h

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

Parts involved

injection pump metering cinjection pumpwiring harness

Related codes

P2A12P2A14P2A15P2A17P0257

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