P2446 OBD-II: Secondary Air Injection System Pump Stuck On
P2446 Severity
Will P2446 go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P2446?
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 Pump is controlled by the engine computer. If the pump does not operate as requested, code P2446 will be set.
Need a P2446 diagnosis? Trust our experts.
Tuffy Tire & Auto Service Center - Grandview
Excite Auto Repair & Towing
All In Auto Service
Tuffy Tire & Auto Service - Grove City
OBD II Fault Code
- OBD II P2446
OBD-II Code Powertrain Control Module (PCM) failure is defined as a Secondary Air Injection System Pump Stuck On
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 Pump is controlled by the engine computer. If the pump does not operate as requested, code P2446 will be set.
Common Problems That Trigger the P2446 Code
- Clogged or disconnected vacuum hose
- Powertrain Control Module (PCM) failure
- Secondary air pump control valve failure
- Secondary air pump failure
- Wiring issue
Ask our experts about P2446.
RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.
Call us at 877-913-1554
Available 9am – 6pm ET Monday through Friday