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P2435 is a diagnostic trouble code (DTC) for "Secondary Air Injection System Air Flow/Press Sensor Circuit Bank 2". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $154.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $50.0 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.
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The P2433 diagnostic trouble code is an indication that there is a problem with the airflow/pressure sensor circuit on Bank 2 of the secondary air injection system.
Related Trouble Codes:
The purpose of the secondary air injection system is to reduce the emission of harmful pollutants into the atmosphere. Fresh air is permitted into the exhaust system through the secondary air injection system and this reduces harmful pollutants that escape into the environment. The secondary air injection system collects information about pressure and flow. This information is sent to the powertrain control module (PCM) through a voltage signal. If the voltage signal reading does not fall within the specifications that have been predetermined by the manufacturer, the powertrain control module (PCM) will store the P2435 diagnostic trouble code and the Check Engine Light will come on.
Diagnostic trouble codes should be diagnosed in the order that they appear in the powertrain control module (PCM).
Use an OBD-II scanner to collect all trouble codes that have been stored by the powertrain control module (PCM) as well as freeze frame data.
Inspect vacuum switching valve wiring for frays, breaks, and shorts.
If any vacuum switching valve wiring has frays, breaks, and shorts, repair and replace as required.
Inspect vacuum switching valve connector for damage, corrosion, or bent pins.
If the vacuum switching valve connector is damaged, corroded, or has bent pin, repair and replace as required.
Clear all diagnostic trouble codes from the Powertrain Control Module (PCM) and operate the vehicle or complete a test drive to see if the P2435 trouble code comes back
Inspect pressure sensor wiring for frays, breaks, and shorts.
If any pressure sensor wiring has frays, breaks, and shorts, repair and replace as required.
Inspect pressure sensor connector for damage, bent pins, and corrosion.
If the pressure sensor connector is damaged, corroded, or has bent pin, repair and replace as required.
Clear all diagnostic trouble codes from the Powertrain Control Module (PCM) and operate the vehicle or complete a test drive to see if the P2435 trouble code comes back.
Inspect the one-way check valve to ensure it is working properly.
If one-way check valves are faulty, repair and replace as required.
Clear all diagnostic trouble codes from the Powertrain Control Module (PCM) and operate the vehicle or complete a test drive to see if the P2435 trouble code comes back.
Clear all diagnostic trouble codes from the Powertrain Control Module (PCM) and operate the vehicle or complete a test drive to see if the P2435 trouble code comes back.
Inspect the air injection pump to ensure it is working properly.
Inspect the air injection pump hoses for breaks and loose connections.
If there are breaks and/or loose connection in the air injection pump hoses, repair or replace as required.
Inspect the air injection system fuses.
If there is damaged wiring or pumps that are causing a blown fuse, repair or replace as required.
One common mistake when diagnosing the P2435 trouble code is neglecting to add a drain tube when replacing the secondary air injection pump. If it is necessary to replace the secondary air injection pump, it is important to add a drain tube to the pump housing. Failing to add a drain tube to the secondary air injection pump housing could cause multiple failures. It is also important to test the one-way check valves before completing a diagnosis as faulty one-way check valves are commonly associated with the P2435 diagnostic trouble code.
A diagnostic trouble code is normally considered serious when it causes driveability issues or a change in performance. Symptoms of the P2435 diagnostic trouble code could make driving conditions very hazardous. For this reason, the P2435 diagnostic trouble code is considered serious and should be diagnosed and repaired as soon as possible.
When diagnosing the P2435 trouble code, it is important to test the one-way check valves prior to making a diagnosis. Faulty one-way check valves are common, and in order to make a proper diagnoses, this component should be addressed. Failing to diagnose and replace one-way check valves that are faulty could result in damage to other secondary air injection system components.
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