OBD Guide

P2C28

Fuel Injector Group B Supply Sense Circuit High

P2C28 is an OBD-II diagnostic trouble code meaning: Fuel Injector Group B Supply Sense Circuit High. Common causes: open or short circuit in the group b injector circuit, wiring harness damage. Estimated repair cost: $17–56.

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

FAQ

What does the P2C28 code mean?

P2C28 is an OBD-II diagnostic trouble code that indicates: Fuel Injector Group B Supply Sense Circuit High

What causes a P2C28 error code?

The most common causes of P2C28 include: Open or short circuit in the group B injector circuit; Wiring harness damage; Contact corrosion; Engine control unit malfunction.

How do I fix a P2C28 diagnostic trouble code?

To fix P2C28: Check the continuity of the injector circuit of group B. Inspect the wiring harness for damage. Check contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2C28?

Yes, but get it checked soon

How much does it cost to fix P2C28?

The estimated repair cost for P2C28 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat