They will charge you for another test if you fail, and the test results get sent straight to DMV electronically (instantly). Just make sure that you properly jack up and secure the vehicle so you don’t get crushed while swapping the parts.Commifornia doesn't cut any breaks when it comes to a failed smog test. However, the parts themselves range from $200 to $300, while the labor usually costs less than $100.īut if you can jack up your vehicle and reach the secondary air injection pump, then the job itself is relatively straightforward, so it’s not hard to save a little bit of money. If you’re looking to save a little money when you’re replacing your secondary air injection pump, you can swap the parts out yourself. Keep in mind that the exact cost for your vehicle’s repairs will vary depending on what you drive and where you take it in for repairs. This is significantly cheaper than replacing the primary air pump, which can cost from $600 to $700. The average secondary air injection pump replacement cost is between $250 and $400. Secondary Air Injection Pump Replacement Costs Simply put, the more fresh air that your vehicle has in the exhaust system, the more effective the catalytic converter is at its job. While this might seem like it’s cheating the emissions system by lowering the percentage of hydrocarbons in the exhaust, that’s not how the testing works, and it actually increases the number of hydrocarbons your catalytic converter can convert into water. The secondary air injection pump is an emissions component that lowers emissions by pumping in fresh air just before the catalytic converter. The Function of a Secondary Air Injection Pump It a hose going to the intake, so follow this hose. You can locate it by looking for something like the picture here above or below. It can sometimes be hidden deep into the engine bay, but mostly you will find it installed pretty visible on the engine. The secondary air injection pump is usually located on the engine or at least in the engine bay. However, the longer the problem goes on, the more likely the problem will continue at higher RPMs. This gets the ECM back to sending the correct readings to the engine. That’s because as you press the accelerator, your vehicle produces more hydrocarbons, which can be enough to get the sensor working as it should. Sometimes the only performance problem to come up is a low idle. Otherwise, you might run into problems as you drive, and these problems will only worsen over time. This is why you should fix a faulty secondary air injection pump as soon as possible. This is because your engine is changing the overall performance based on errant readings, which in turn creates actual problems as it tries to run. Stalling Engine or Reduced Power OutputĪnother set of performance problems that can come from errant readings from the secondary air injection pump is a stalling engine or reduced power output. This can lead to performance problems like slower acceleration. Your secondary air injection pump monitors the hydrocarbon levels coming out of the engine, and if it’s getting the wrong readings, it can tell your ECM that something isn’t going right inside the combustion chamber. ![]() While we’ll dive into how this component works later on, just know that if it’s acting up, you’ll never pass an emissions test – even if you don’t have an active check engine light. Moreover, most emissions tests will automatically fail you if you have an emissions-related check engine light. The more fresh air that your catalytic converter gets, the better it can do its job. Your secondary air injection pump is an emissions component, so it’s no surprise that if it’s acting up, you’re not going to pass an emissions test. That’s why it’s always best to hook up an OBD II scan tool to your vehicle when making diagnostic repairs – that way, you diagnose the problem correctly the first time. If that’s the case, you have a check engine light because of one of the symptoms, not the cause. ![]() However, you might also get a code for an oxygen sensor or your catalytic converter. The most common code you’ll run across is a P0410, a Secondary Air Injection System Malfunction. So, it’s no surprise that if you have a faulty secondary air injection pump one of these sensors will tell the ECM to let you know through a check engine light. ![]() Your vehicle’s manufacturer fills it to the brim with sensors, and these sensors monitor just about everything that your car does. Stalling Engine or Reduced Power Outputīelow we’ve highlighted a more detailed list of the signs of a bad or failing secondary air injection pump to look for: 1.The main symptoms of a bad secondary air injection pump include:
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