OBD Guide

P2C28

Fuel Injector Group B Supply Sense Circuit High

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Power Loss
  • Check Engine Light Illuminates
  • Misfires

Causes

  • Open or short circuit in the group B injector circuit
  • Wiring harness damage
  • Contact corrosion
  • Engine control unit malfunction
  • Problems with injector power supply

How to Fix

  1. Check the continuity of the injector circuit of group B
  2. Inspect the wiring harness for damage
  3. Check contacts for corrosion
  4. Test the operation of group B injectors
  5. Check the power supply to the injector circuit

Related codes

Error P2C28 by Vehicle Brand