Secondary air injection system malfunction in engine control module (ECM) is called P0410 code. What are the possible reasons why there is an occurrence of secondary air injection to fail or malfunction? One reason for secondary air injection system malfunction is if there is low airflow into the exhaust, which happens when there is blockage into the air injection system air intake. Secondary air injection malfunction also happens if the oxygen sensors are sluggish in the response time of exhaust’s increased oxygen levels. Secondary air injection malfunction is also a result of partly clogged catalyst, increasing the exhaust back pressure. It also holds the same with relaying contacts of air injection pump not making contact.
How do you know that your vehicle is suffering from secondary air injection malfunction? The Check Engine Light is illuminated and the code is set to ECM memory and freeze frame. How does an auto mechanic diagnose secondary air injection malfunction? The auto mechanic scans codes and documents the freeze frame data (to identify the problem), clears the engine codes and retest the secondary air injection system (detect proper functioning), repairs any oxygen sensor or other codes (prior to P0410 diagnosis), monitors the oxygen sensor pid using a scanner (observe sensor reaction when the air injection pump is activated), and replaces a slow oxygen sensor and retesting the entire system.
What are the most common mistakes when diagnosing secondary air injection malfunction or P0410 code? If the intake air flow is not properly checked in the air injection pump prior to pump replacement, and not checking the air injection pump relay for burnt wire connections prior to replacement of an air injection pump can all result to bad diagnosis. A failing secondary air injection system may lead to failed emission test result. If the check engine light is on, your vehicle may also fail the emission testing. The repair of secondary air injection malfunction or P0410 code include sluggish oxygen sensors, replacement of air injection pump and power relay, and clogged air injection intake filter.
Are you having problems with your Toyota Tundra secondary air injection system? Do you need a SAIS bypass kit? Hewitt-Tech can help you just feel free to check our homepage or website for more information, or contact us directly for more details. Get a professional help now!