#2001 silverado secondary air monitor code#

This part is needed to lower how many carbon emissions are sent out of the tailpipe. It can also be called the SAI pump or smog pump. The secondary air injection pump goes by several names. What’s The Function Of A Secondary Air Injection Pump? Plus, you don’t want the engine to stall while you are in the middle of a congested highway. While you should be able to get the car started again, this could lead to serious drivability concerns. If the idle gets too low, the engine could stall. Yet, when this secondary air injection pump fails, the imbalance occurs and you may see the RPMs drop suddenly. When the car is in this sweet spot, it means the engine is getting just the right amount of air and fuel. Low Idle RPMĪ normal car engine idle should be between 600 and 1,000 RPMs. For this reason, you won’t want to keep driving for fear of dealing with a stalling engine, which we will talk more about in the next symptom. What you are left with is a rough performance. Because of the malfunctioning pump, there will be reduced output from the engine as it tries to compensate for the issues. Rough Engine PerformanceĪdditional engine performance problems are sure to manifest at the same time. If you combine this symptom with good troubleshooting, you should be able to figure it out quickly. Other mechanical issues are known for creating poor acceleration as well, so you can’t rely on this symptom alone to make a diagnosis. Therefore, you will have trouble getting the car to accelerate when you push the pedal down. If the ratio becomes lean, it won’t get enough fuel. When the secondary air injection pump causes problems, the air-fuel ratio in the combustion engine becomes unbalanced. Continuing to drive this way means that added pollutants are entering the earth’s atmosphere. Therefore, you will go to the emission testing location and probably fail.Īside from how this robs you of your time, you want to also think about what you are doing to the environment. If there’s a problem with this vital pump, the hydrocarbons in your emissions system won’t be reduced correctly. Failed Emissions TestĮmissions testing is required in many states to ensure the vehicle is running efficiently.

#2001 silverado secondary air monitor code#

P0411: Secondary Air Injection System Incorrect Flow DetectedĪny other DTCs can be referenced in our online trouble code library.

P0410: Secondary Air Injection System Malfunction.

Both of these codes are common when dealing with a faulty secondary air injection pump. To determine what the light is trying to tell you, it’s important to plug in your compatible code scanner.

With the faulty air pump affecting how the engine runs, you can expect this warning. This indicator light may be set because of the secondary air injection pump. The Check Engine Light is designed to tell you when there’s a problem with your vehicle. Let’s jump in and see what symptoms to watch for. Aside from those symptoms, the idle RPM may also be slower, even to the point of stalling the engine. It also leads to a failed emissions test, slow acceleration and overall decreased performance. When the secondary air injection pump fails, you will notice the Check Engine Light. Conclusion Symptoms Of A Bad Secondary Air Injection Pump