OBD Guide

P04CF

EGR Temperature Sensor C Circuit Range/Performance

P04CF is an OBD-II diagnostic trouble code meaning: EGR Temperature Sensor C Circuit Range/Performance. Common causes: egr temperature sensor malfunction, open or shorted wiring harness. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

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

Causes

  • EGR temperature sensor malfunction
  • Open or shorted wiring harness
  • Poor contact in the sensor connector
  • EGR valve malfunction
  • ECU problems (rare)

How to Fix

  1. Check the integrity of the wiring harness to the EGR temperature sensor
  2. Check resistance and sensor readings
  3. Clean or replace EGR valve if necessary
  4. Check connections and contacts in the connector
  5. Reset error and test drive

Related codes

Error P04CF by Vehicle Brand

FAQ

What does the P04CF code mean?

P04CF is an OBD-II diagnostic trouble code that indicates: EGR Temperature Sensor C Circuit Range/Performance

What causes a P04CF error code?

The most common causes of P04CF include: EGR temperature sensor malfunction; Open or shorted wiring harness; Poor contact in the sensor connector; EGR valve malfunction.

How do I fix a P04CF diagnostic trouble code?

To fix P04CF: Check the integrity of the wiring harness to the EGR temperature sensor. Check resistance and sensor readings. Clean or replace EGR valve if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P04CF?

Limited driving only, diagnose soon

How much does it cost to fix P04CF?

The estimated repair cost for P04CF is $33–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat