OBD Guide

P0273

Cylinder 5 Injector A Circuit Low

P0273 is an OBD-II diagnostic trouble code meaning: Cylinder 5 Injector A Circuit Low. Common causes: cylinder 5 injector malfunction, open or short circuit in 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 5
  • Unstable engine idling
  • Reduced engine power
  • Increased fuel consumption

Causes

  • Cylinder 5 injector malfunction
  • Open or short circuit in wiring harness
  • Poor contact in the injector connector
  • ECU malfunction

How to Fix

  1. Check the resistance of the injector of cylinder 5
  2. Inspect the wiring harness and connectors for damage
  3. Check the voltage in the injector control circuit
  4. If necessary, replace the injector or repair the wiring harness

Related codes

Error P0273 by Vehicle Brand

FAQ

What does the P0273 code mean?

P0273 is an OBD-II diagnostic trouble code that indicates: Cylinder 5 Injector A Circuit Low

What causes a P0273 error code?

The most common causes of P0273 include: Cylinder 5 injector malfunction; Open or short circuit in wiring harness; Poor contact in the injector connector; ECU malfunction.

How do I fix a P0273 diagnostic trouble code?

To fix P0273: Check the resistance of the injector of cylinder 5. Inspect the wiring harness and connectors for damage. Check the voltage in the injector control circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0273?

Limited driving only, diagnose soon

How much does it cost to fix P0273?

The estimated repair cost for P0273 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat