OBD Guide

P2A1D

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

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–278 (est.)

Symptoms

  • Increased fuel consumption
  • Reduced engine power
  • Unstable idling
  • Difficulty starting the engine
  • Increased emissions

Causes

  • High pressure fuel pump malfunction
  • Pump control circuit problems
  • Worn cam mechanism or pump rotor
  • Injector malfunction
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the fuel pump control circuit
  2. Diagnose the condition of the high pressure fuel pump
  3. Check the condition of the injectors
  4. Test the cam mechanism and pump rotor
  5. If necessary, replace faulty components

Related codes

Error P2A1D by Vehicle Brand