OBD Guide

P0264

Cylinder 2 Injector A Circuit Low

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

Symptoms

  • Rough engine operation
  • Misfire in cylinder 2
  • Reduced power and efficiency
  • Increased fuel consumption
  • Check Engine Light Is On

Causes

  • Open or short circuit in the injector wiring harness
  • Cylinder 2 injector malfunction
  • Problems with connectors or contact oxidation
  • ECU malfunction
  • Incorrect circuit voltage

How to Fix

  1. Check the integrity of the wiring harness to the cylinder 2 injector
  2. Inspect the injector connectors for corrosion or damage.
  3. Check injector resistance (compare with manufacturer's specifications)
  4. Test the injector on a bench or replace it with a known good one.
  5. If the problem persists, check the control circuit from the ECU

Related codes

Error P0264 by Vehicle Brand