Fix P2444: STEP-BY-STEP diagnostic GUIDE!

The P2444: Secondary Air Injection System Pump Stuck On Bank 1 refers to a problem where the secondary air injection pump for Bank 1 remains stuck in the “on” position. This can lead to an overactive pump, which may cause increased wear, damage to other components, or emissions-related issues. The potential causes include a faulty pump or electrical/control circuit problems.

P2444 – Quick Overview

CodeInformation
MeaningP2444: Secondary Air Injection System Pump Stuck On Bank 1
Is it serious?Moderate – a pump stuck on can lead to excessive operation, resulting in damage to the pump, decreased efficiency, and higher emissions.
Possible causes– Pump stuck in the on position
– Faulty pump
– Electrical or control circuit issues
How to diagnose?– Inspect and test the secondary air injection pump
– Check electrical connections and control circuits
– Replace faulty pump if needed

P2444 Meaning

The P2444: Secondary Air Injection System Pump Stuck On Bank 1 code indicates that the secondary air injection pump in Bank 1 is continuously operating, even when it should not be. The air injection pump is designed to run only during specific engine conditions, mainly to reduce emissions during cold starts. A stuck pump can be due to electrical or mechanical malfunctions, including a shorted circuit, control module issues, or a physically stuck pump. This issue can lead to reduced efficiency and damage to components due to overworking.

Step-by-step diagnostic guide

ActionDescriptionTools Needed
Check for Other CodesUse an OBD-II scanner to determine if there are other related codes. Multiple codes may provide more information on the underlying issue with the air injection system.OBD-II Scanner
Inspect the Secondary Air Injection PumpVisually inspect the secondary air injection pump for Bank 1. Look for any visible damage, such as physical wear or signs that the pump is stuck.Flashlight, Safety Gloves
Test the Pump FunctionalityUse a diagnostic tool to command the secondary air injection pump on and off. Verify that it operates as expected and check if it remains stuck on.Diagnostic Tool
Check Electrical ConnectionsInspect all electrical connections leading to the pump, including wires and connectors, for loose connections, corrosion, or any signs of short circuits.Flashlight, Multimeter
Test the Control CircuitMeasure voltage in the control circuit and verify continuity. Ensure the signals from the control module are being properly received by the pump.Multimeter, Wiring Diagram
Replace the Pump if FaultyIf the pump is determined to be faulty and remains stuck in the “on” position, replace it with a new unit to restore proper operation.Replacement Pump, Wrench Set
Clear the Code and Test DriveAfter repairs, use an OBD-II scanner to clear the P2444 code. Perform a test drive to ensure the air injection system operates correctly and the code does not reappear.OBD-II Scanner, Vehicle Owner’s Manual
Recheck for CodesAfter the test drive, re-scan the vehicle to confirm that the P2444 code has not returned. Further diagnostics may be required if the code persists.OBD-II Scanner
Bluetooth OBD-II scanners

OBD-II scanner Buyer’s Guide

  • Scanner features explained
  • Different types of scanners
  • Scanners for coding/odometer/ECU/checks
  • Best picks + discount codes

Download PDF FREE

    Leave a Comment