OBD Guide

P2A8E

Alternative Fuel Pump A Performance

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–278 (est.)

Symptoms

  • Difficulty starting the engine
  • Unstable idling
  • Loss of power during acceleration
  • Engine failures
  • Increased fuel consumption

Causes

  • Malfunction of the additional fuel pump
  • Problems with pump wiring or connectors
  • Pump relay or fuse failure
  • Clogged fuel filter
  • Engine control unit malfunction

How to Fix

  1. Check fuses and fuel pump relays
  2. Diagnose the electrical circuit of the pump
  3. Check the pressure in the fuel system
  4. Test or replace auxiliary fuel pump
  5. Check control unit fault codes

Related codes

Error P2A8E by Vehicle Brand