P2444 - OBD Trouble Code

The Secondary Air Injection System Switching Valve is a valve controlled by the vehicle’s computer, which also controls the air injection into the engine’s exhaust system. The OBD P2444 error code refers to a problem with the circuit of the Solenoid, and not on the operation of the valve itself. The fresh air supply tube comes with a check-valve, which works by preventing exhaust gas from going back up in to the air injection pump. The PCM monitors the driver that activates the air injection pumps for faults. When the PCM commands the air injection pump relay on, the control circuit voltage would be pulled close to zero. When the relay is commanded by the PCM to be off, the control circuit would have battery voltage present. If the PCM notices an unexpected voltage, it will set the error code P2444 in the system.

What causes this problem with the Secondary Air Injection System Pump Stuck On Bank1?

• Malfunctioning vacuum switching valve
• Vacuum switching valve harness might be open or little  
• Substandard electrical connection in the vacuum switching valve circuit
• Faulty air switching valve
• There can be inoperative pressure sensor

1. Air Control Valve Relay – Faulty control valve relay will affect the air control and emission system. Thus, replace it immediately.
2. Engine Control Module – It is not always the components, but the ECM that can also be faulty. It can cause misinterpretation of correct data thus leading to wrong operational decisions which will affect the transmission and overall engine performance. Thus, replace faulty module and reprogram it now!
3. Air Injection Check Valve – Faulty valve can cause particulate matter and moisture to enter the system, thus ruining the performance. Replace faulty check valve immediately.
4. Powertrain Control Module - Powertrain Control Module can also be faulty in rare cases and thus needs through checks for system and software errors. Thus check and replace it, if required.
5. Air Injection Pump – Any fault in the air pump will cause increased emissions. Replace them now!
6. Exhaust System Parts - A burning smell of the engine is likely to be seen as soon as there is a fault in any of the exhaust system parts. Also, performance issues are likely to arise due to a failure in the exhaust manifold. A leak or crack also leads to a reduction in the power, acceleration and efficiency of the vehicle. Repair or replace now.
7. Electronic Control Unit – The ECU manages the cooling system to control the battery operating temperatures and thus must be replaced, if found faulty. Thus, buy new ECU modules and components from us!
8. Air Injection Solenoid – Check for faulty air injection solenoid and replace it immediately. Buy from us now!
9. Diagnostic Tool – Make use of quality diagnostic tools to resolve any OBD error code. Buy quality diagnostic tools from us!

Willing to know some common symptoms of OBD Trouble Code P2444? Your wish is our demand. Have a look at them below:

Common Symptoms

• Visibility in the check engine light
• Noises might start coming from the secondary air injection system
• Car engine might start stalling when idling
• Engine stalling while starting the automobile
• Engine hesitation while accelerating
• P2444 diagnostic trouble code might be stored in the PCM

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P2444:

• Make sure to mend the faulty vacuum switching connector
• It is essential to restore the frayed, broken, or shorted pressure sensor wiring
• Repair or replace the quirky one-way check valve
• Rehabilitate the damaged or corroded pressure sensor connector
• The malfunctioning pressure sensor should be repaired or replaced as per the need
• Carefully adjust the faults in the air injection pump
• The switching valve wiring should be restored to working order
• Recondition the non-functioning air injection valve
• Adjust the flawed switching valve

There is no need to be anxious as Parts Avatar – Car Parts Online is here to help you out! We have high grade air pump, vacuum hose, vacuum switching valve, pcm, ecm, oxygen sensor, air injection system, air flow pressure sensor, powertrain control module, engine control module, maf sensor, pcm car, air fuel ratio sensor, mass air flow sensor, ecm car, pcm module, ecm module, secondary air injection pump and a lot more for our precious customers.

If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

• Scan the OBD codes and documents and freeze frame the data in order to verify the problem.
• Clear the engine codes and retest the air injection system for proper operation. If the code returns, start with the diagnosis.
• Test the air injection switching valve for the controlling of air injection pump operation.
• Checks the resistance of the air injection pump and air injection switching valve.
• Checks the air injection pump for proper voltage between the pins of power and ground.
• Check for problem with the PCM and repair or replace accordingly.

Common Mistakes When Diagnosing The P2444 Code

There are multiple cases where this trouble code is caused due to defective one-way check valves. So that is the reason why it is essential to inspect them properly to prevent a misdiagnosis and multiple secondary air injection pump replacements. Make sure to add a drain tube onto the pump housing when restoring the secondary air injection pump, because failure in doing this would cause a lot of failures in the secondary air injection pump.