Close

What Does P2258 Code Mean?

    OBD-II Code P2258 is defined as a Secondary Air Injection System Control "A" Circuit High

    The Secondary Air Injection System pumps outside fresh air into the Exhaust System during cold engine start up. This additional air helps burn up the highly rich exhaust emissions that are produced when the engine is warming up. The Secondary Air System typically has an Air Pump and some tubes or plumbing to route the air. The system also has a solenoid and Check Valve(s) to control the airflow. When the engine control module (PCM) detects a faulty with the Secondary Air Injection System, it will set code P2258.

    Common Problems That Trigger the P2258 Code

    • Clogged or disconnected vacuum hose
    • Powertrain Control Module (PCM) failure
    • Secondary air pump failure
    • Secondary air pump relay failure
    • Wiring issue
    Not the OBD-II Code You're Looking For?

    No comments yet...

    Sign in to comment