OBD Guide

P008F

Engine Coolant Temperature/Fuel Temperature Correlation

P008F is an OBD-II diagnostic trouble code meaning: Engine Coolant Temperature/Fuel Temperature Correlation. Common causes: coolant temperature sensor malfunction, fuel 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

  • Unstable engine operation
  • Increased fuel consumption
  • Reduced engine power
  • Difficulty starting the engine

Causes

  • Coolant temperature sensor malfunction
  • Fuel temperature sensor malfunction
  • Poor connection or damaged wiring harness
  • Problems with the cooling system (leakage, thermostat malfunction)
  • Dirty or faulty fuel pump
  • ECU software error

How to Fix

  1. Check the readings of the coolant and fuel temperature sensors using a diagnostic scanner
  2. Compare readings with reference values
  3. Check the integrity of the wiring harness and contacts
  4. If necessary, replace the faulty sensor
  5. Check the cooling system for leaks and malfunctions
  6. Flash the ECU if the problem is due to a software error

Related codes

Error P008F by Vehicle Brand

FAQ

What does the P008F code mean?

P008F is an OBD-II diagnostic trouble code that indicates: Engine Coolant Temperature/Fuel Temperature Correlation

What causes a P008F error code?

The most common causes of P008F include: Coolant temperature sensor malfunction; Fuel temperature sensor malfunction; Poor connection or damaged wiring harness; Problems with the cooling system (leakage, thermostat malfunction).

How do I fix a P008F diagnostic trouble code?

To fix P008F: Check the readings of the coolant and fuel temperature sensors using a diagnostic scanner. Compare readings with reference values. Check the integrity of the wiring harness and contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P008F?

Limited driving only, diagnose soon

How much does it cost to fix P008F?

The estimated repair cost for P008F is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat