OBD Guide

P04FA

EGR A Control Temperature Too High

P04FA is an OBD-II diagnostic trouble code meaning: EGR A Control Temperature Too High. Common causes: dirty or stuck egr valve, egr temperature sensor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Increased fuel consumption
  • Reduced engine power
  • Unstable idling
  • Check Engine Light Illuminates

Causes

  • Dirty or stuck EGR valve
  • EGR temperature sensor malfunction
  • Problems with wiring harness or contacts
  • Mechanical damage to the EGR system
  • ECU software error

How to Fix

  1. Check the condition of the EGR valve and its electrical connections
  2. Clean or replace EGR valve if necessary
  3. Check the EGR temperature sensor and its circuit
  4. Scan the system for other errors
  5. If necessary, update the ECU software

Related codes

Error P04FA by Vehicle Brand

FAQ

What does the P04FA code mean?

P04FA is an OBD-II diagnostic trouble code that indicates: EGR A Control Temperature Too High

What causes a P04FA error code?

The most common causes of P04FA include: Dirty or stuck EGR valve; EGR temperature sensor malfunction; Problems with wiring harness or contacts; Mechanical damage to the EGR system.

How do I fix a P04FA diagnostic trouble code?

To fix P04FA: Check the condition of the EGR valve and its electrical connections. Clean or replace EGR valve if necessary. Check the EGR temperature sensor and its circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P04FA?

Limited driving only, diagnose soon

How much does it cost to fix P04FA?

The estimated repair cost for P04FA is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat