OBD Guide

P0280

Cylinder 7 Injector A Circuit High

P0280 is an OBD-II diagnostic trouble code meaning: Cylinder 7 Injector A Circuit High. Common causes: cylinder 7 injector malfunction, open or short circuit in the injector wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Misfire in cylinder 7
  • Unstable idle
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine Light Illuminates

Causes

  • Cylinder 7 injector malfunction
  • Open or short circuit in the injector wiring harness
  • Poor contact in the injector connector
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the resistance of the injector of cylinder 7
  2. Inspect the wiring harness and injector connectors for damage.
  3. Check the voltage and control signal at the injector
  4. If necessary, replace the injector or repair the wiring harness
  5. Clear error code and test drive

Related codes

Error P0280 by Vehicle Brand

FAQ

What does the P0280 code mean?

P0280 is an OBD-II diagnostic trouble code that indicates: Cylinder 7 Injector A Circuit High

What causes a P0280 error code?

The most common causes of P0280 include: Cylinder 7 injector malfunction; Open or short circuit in the injector wiring harness; Poor contact in the injector connector; Engine control unit (ECU) malfunction.

How do I fix a P0280 diagnostic trouble code?

To fix P0280: Check the resistance of the injector of cylinder 7. Inspect the wiring harness and injector connectors for damage.. Check the voltage and control signal at the injector. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0280?

Limited driving only, diagnose soon

How much does it cost to fix P0280?

The estimated repair cost for P0280 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat