OBD Guide

P02FB

Cold Start Fuel Injection Control Circuit/Open

P02FB is an OBD-II diagnostic trouble code meaning: Cold Start Fuel Injection Control Circuit/Open. Common causes: open or short circuit in control circuit, malfunction of the additional injection control solenoid. Estimated repair cost: $56–167.

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

Symptoms

  • Poor engine starting when cold
  • RPM dips when warming up
  • Increased fuel consumption
  • Unstable idle

Causes

  • Open or short circuit in control circuit
  • Malfunction of the additional injection control solenoid
  • Wiring Harness Problems
  • Engine ECU malfunction

How to Fix

  1. Check the integrity of the wiring harness
  2. Test control circuit resistance
  3. Check the functionality of the solenoid
  4. Scan the ECU for other errors
  5. If necessary, replace faulty components

Related codes

Error P02FB by Vehicle Brand

FAQ

What does the P02FB code mean?

P02FB is an OBD-II diagnostic trouble code that indicates: Cold Start Fuel Injection Control Circuit/Open

What causes a P02FB error code?

The most common causes of P02FB include: Open or short circuit in control circuit; Malfunction of the additional injection control solenoid; Wiring Harness Problems; Engine ECU malfunction.

How do I fix a P02FB diagnostic trouble code?

To fix P02FB: Check the integrity of the wiring harness. Test control circuit resistance. Check the functionality of the solenoid. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P02FB?

Limited driving only, diagnose soon

How much does it cost to fix P02FB?

The estimated repair cost for P02FB is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat