P2442 OBD Error Code: Problem & Solutions

Error Code P2442 means that there is a problem with the car’s emissions system, and most probably with the air pump. The air pump sends air to the exhaust to decrease the emissions. The air from the outside and pumped into the one-way check valves to every bank of the exhaust. This code is usually caused by air pump pressure escaping to the outside if any of the air pipes that lead to the combustion valve is damaged or lodged after changing the spark plug. Most of the time, this code is triggered when one-way check valve have been damaged or has allowed water (which naturally happens in the exhaust) back into the pump. During colder seasons, particularly in seasons with higher humidity, water can be excessive and may partially fill the air pump and freeze there. Obviously, if the PCM triggers the pump on, the pump will not turn, and this results to overloading of the circuit and “pop” the fuse.

What causes this problem with the Secondary Air Injection System Switching Valve Stuck Open Bank 2?

• Faulty air pump check valves
• Defective vacuum lines or air control solenoids
• Defective air pump or air pump relay
• Defaults in the vacuum switching valve
• Vacuum switching valve harness might be open or shorted
• Vacuum switching valve circuit might have poor electrical connection
• Air switching valve might be flawed
• Some issues related to the pressure sensor

1. Engine Control Module - Is your car engine light still staying ON after resetting or your car engine is turning off for no reason? Then these are some common symptoms indicating that your car engine control module is defective.
2. Air Injection Pump – Most common problem with this OBD error is with the air pump. Get it checked and replace with new air pump now!
3. Air Control Valve Relay – The valve relay can also be damaged causing air intake problems. Replace faulty valve relays. Buy now!
4. Air Injection Check Valve – Faulty check valve may lead to water or moisture entering the pump. Thus, if the valve is faulty/damaged, it’s time to replace it now!
5. Powertrain Control Module - The PCM works as the central computer system in an automobile’s mechanism. This auto part is the in charge of all the constituents as well as the functions performed by them. Having such enormous importance in the operation of all the parts means that any defect in it will affect almost every aspect of a car.
6. Electronic Control Unit - The ECU is a major component of your car's onboard computer. It's used to regulate many systems and subsystems in your car's engine, drive train and other major components. Visit us to buy best quality ECU online.
7. Diagnostic Tools – Take help of a professional mechanic to diagnose OBD code error. Use high grade diagnostic tools to resolve this issue. Buy new tools and equipment form us!

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P2442 code by mentioning some major symptoms below:

Common Symptoms

• Illumination in the service engine soon light
• Traction Control and VSC lights might start appearing in addition to a warning light
• The vehicle might go into “limp mode,” limiting gears and speed
• There might be a louder sounding engine
• Hesitation when the automobile is accelerating
• Issue of stalling at either vehicle startup or idle

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 P2442:

• It is essential to restore the flawed one-way check valves
• Repair or replace the quirky wiring
• Rehabilitate the defaults in the fuses
• The malfunctioning powertrain control module should be repaired or replaced as per the need
• Carefully adjust the faults in the hoses or fittings
• The pumps and assembly should be cleaned properly
• Recondition the non-functioning vacuum switching valve
• It is necessary to perform proper service of the unsound vacuum switching valve harness
• Adjust the flawed vacuum switching valve circuit

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of 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 many more. Now all your problems would vanish within no time.

Here are some steps which you should follow in order to diagnose this fault code:

Scan codes and freeze frame data in order to verify the problem and check if the code is really present.

Clear the code and retest the vehicle under similar conditions to see if the error reappears.

Inspect and repair the O2 sensor, if faulty, before checking for problems related to the emission system.

Check the O2 sensor pid on a scanner to see if the sensor reacts when the air injection pump is activated, the sensor should go to below 150 mv within 3 seconds.

Replace the old and underperforming O2 sensor and retest the vehicle for errors.

Checks air injection relay for power out of relay if pump does not turn on.

Checks the air injection pump for proper resistance between pins of power and ground and replace the pump, valve and or relay as required.

If everything checks out, inspect for the problem with the PCM/ECM and check if it requires reprogramming or replacement.

Common Mistakes When Diagnosing The P2442 Code

This error code is generally caused due to moisture in the air injection pumps. But keep in mind that this problem might not be in the pump itself. Now if the secondary air injection pump is restored and the root cause of the failed pump is not diagnosed, then the pump might continue to fail, which would result in more replacements.