OBD Guide

P3110

Cylinder 3 High-Pressure Fuel Injector Low Side Circuit High

P3110 is an OBD-II diagnostic trouble code meaning: Cylinder 3 High-Pressure Fuel Injector Low Side Circuit High. Common causes: broken or damaged wires to the injector, oxidation of injector contacts. Estimated repair cost: $28–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$28–167 (est.)

Symptoms

  • Unstable engine operation
  • Misfire in cylinder 3
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Is On

Causes

  • Broken or damaged wires to the injector
  • Oxidation of injector contacts
  • Malfunction of the injector itself
  • Problems with the engine control unit
  • Short circuit in control circuit

How to Fix

  1. Check the integrity of the wiring to the injector
  2. Clean injector contacts
  3. Check injector resistance
  4. Replace the injector if necessary
  5. Check the signal from the control unit

Related codes

FAQ

What does the P3110 code mean?

P3110 is an OBD-II diagnostic trouble code that indicates: Cylinder 3 High-Pressure Fuel Injector Low Side Circuit High

What causes a P3110 error code?

The most common causes of P3110 include: Broken or damaged wires to the injector; Oxidation of injector contacts; Malfunction of the injector itself; Problems with the engine control unit.

How do I fix a P3110 diagnostic trouble code?

To fix P3110: Check the integrity of the wiring to the injector. Clean injector contacts. Check injector resistance. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3110?

Limited driving only, diagnose soon

How much does it cost to fix P3110?

The estimated repair cost for P3110 is $28–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat