Powertrain, generic (extended)

P2A14 Injection Pump Fuel Metering Control C Low (Cam/Rotor/Injector)

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2A14 reports that the signal in the drive circuit of fuel metering element C has fallen below its expected window. In practice the control module sees too little voltage or current on that output, as happens when the line touches ground or, depending on the driver design, an open wire. C denotes a third metering element besides A and B, found only on pumps or engines with several separately driven elements. No maker documents P2A14 publicly. Saab's 2011 9-5 diesel shows how such a check works for its single regulator: a control line shorted to ground for longer than one second sets P0253 as an immediate Type A fault. California's comprehensive component rules require this circuit check for every such actuator. Limited power and rough running are typical; P2A15 is the high-side counterpart.

Likely causes

Control wire of element C chafed through and shorted to ground
Broken wire or corroded, loose connector pin in the element C circuit
Coil of metering element C open or shorted to its housing
Faulty output stage in the engine control module

Symptoms

  • Check engine light on
  • Reduced power or limp mode
  • Rough running or misfire-like shaking

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€60–1,500
Time0.5–4 h

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

Parts involved

injection pump metering cinjection pumpwiring harness

Related codes

P2A12P2A13P2A15P2A18P0253

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