Powertrain, generic (extended)

P2A1D Injection Pump Fuel Metering Control E High (Cam/Rotor/Injector)

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2A1D tells that metering element E's circuit sits above its plausible range. Faults that cause it include a lead rubbing through onto a powered wire, moisture bridging pins, an actuator winding shorted internally so that current climbs, or a defective output stage in the control unit. Element E only exists where five or more metering elements are driven individually. No manufacturer publishes P2A1D. Saab's 2002 V6 diesel offers a comparison: an internal short in one of its pump's two pressure valves persisting for more than 2.1 s sets P0259, and the workshop guidance recommends moving the harness while watching the meter to find intermittent shorts. The low reading of the same element is P2A1C.

Likely causes

Internal winding short in metering element E
Lead of element E chafed onto a powered wire or pins bridged by moisture
Defective output stage in the control unit

Symptoms

  • Check engine light on
  • Marked power limitation
  • Engine may cut out

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€80–2,000
Time0.5–5 h

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

Parts involved

injection pump metering einjection pumpwiring harness

Related codes

P2A1AP2A1BP2A1CP2A19P2A21

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