OBD Guide

P2A8E

Alternative Fuel Pump A Performance

P2A8E is an OBD-II diagnostic trouble code meaning: Alternative Fuel Pump A Performance. Common causes: malfunction of the additional fuel pump, problems with pump wiring or connectors. Estimated repair cost: $56–278.

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

FAQ

What does the P2A8E code mean?

P2A8E is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Pump A Performance

What causes a P2A8E error code?

The most common causes of P2A8E include: Malfunction of the additional fuel pump; Problems with pump wiring or connectors; Pump relay or fuse failure; Clogged fuel filter.

How do I fix a P2A8E diagnostic trouble code?

To fix P2A8E: Check fuses and fuel pump relays. Diagnose the electrical circuit of the pump. Check the pressure in the fuel system. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2A8E?

Do not drive — repair immediately

How much does it cost to fix P2A8E?

The estimated repair cost for P2A8E is $56–278. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat