Po411 - P0411 is a general OBDII trouble code, which means that it has the same meaning for the Buick Lucerne as it would any other car or truck. By definition, the code is letting you know that the ECM has detected incorrect flow in the secondary air injection system. P0411: Secondary Air Injection System → Incorrect.

 
The Check Engine Light (MIL) is on and fault code P0411 (16795) is stored in the fault memory. The secondary air injection (AIR) system blows air into the exhaust, behind the exhaust valves, via a passage in the cylinder head. This extra air injection takes place on a cold engine (5°-33° C engine coolant temperature) for about 100 seconds and .... Odessa tx jail

What causes the P0411 code? Air injection pump has failed. Air control solenoids or air lines are faulty. Open or short in wiring harness for air injection system. Air injection system …Well, it cost me $1420 and almost a month in the shop but I finally go to the bottom of the PO411 Secondary Air incorrect flow detected code. For those wondering, this has been an issue I've been struggling with for the last 10 years. I've posted on it here. I've been to 4 different shops and 2 dealerships only to get blank looks and implied ...After a couple minutes of silence it starts back for another 10-30 seconds and stops until the next cold start. The code is P0411- insufficient airflow. I read about this and the listed culprits are the pump, combi valve or the plastic hoses extending from the secondary air.GM has issued a service bulletin 18-NA-061 on P0411. GM has determined that the P0411 condition can also be caused by moisture and/or ice build up in the Secondary Air Injection system in cold climate areas.What causes the P0411 code? Air injection pump has failed. Air control solenoids or air lines are faulty. Open or short in wiring harness for air injection system. Air injection system …Hey All, I recently was trying to diagnose a P0411 MIL on my 1997 Mustang Cobra and had ZERO luck finding solutions on the forums. So after painstakingly going over this super obscure emissions system, I figured I'd cover my process as well as include a diagram of the airlines that make up the Secondary Air Injector System.P0411 is a general OBDII trouble code, which means that it has the same meaning for the Volkswagen Beetle as it would any other car or truck. By definition, the code is letting you know that the ECM has detected incorrect flow in the secondary air injection system. P0411: Secondary Air Injection System → IncorrectHello! We've been dealing with a non-stop PO411 code coming up on my 2003 325I wagon, E46. We've replaced the air pump, the secondary air valve, the hose connecting them, and the small hose coming off of the air valve. We also replaced the DISA Value which wasn't connected to the issue. It is running awesome and sounds great but …This Simple Cooking with Heart recipe is a yummy twist on traditional chili, switching in chicken for ground beef. It's easy to make in a hurry! Average Rating: This recipe lives u...If it does not see the short term fuel trims rise, then the PCM interprets this as a malfunction in the AIR system and a code will be recorded. Potential causes of a P0411 code include: Damaged or missing check valve AIR pump intake port plugged/damaged AIR pump clutch malfunction Holes or damage to exhaust components.Ford focus p0411 secondary air injection code check engine light on. Failed emissionsIf it does not see the short term fuel trims rise, then the PCM interprets this as a malfunction in the AIR system and a code will be recorded. Potential causes of a P0411 code include: Damaged or missing check valve AIR pump intake port plugged/damaged AIR pump clutch malfunction Holes or damage to exhaust components.There are 3 tests or phases that must be done. Luck has it that only phase 1 can set P0411 so that's a start. The pass/fail criteria for phase 1 is the scanner should read 0.7 to 1.9 PSI above BARO. Then you can move on to phase 2 and 3 tests. 2014 Equinox LTZ FWD 3.6L. V-6 (LFX)R. rpgibbs Discussion starter. 124 posts · Joined 2004. #1 · Jul 21, 2006 (Edited) Just got a Check Engine Light and had it read out at a local parts store and came up as a PO411 - Secondary Air Injection System Incorrect Flow. Anybody had this before and if so what is the Fix?Apr 17, 2019 · By definition, the code is letting you know that the ECM has detected incorrect flow in the secondary air injection system. P0411: Secondary Air Injection System → Incorrect Flow Detected. The secondary air injection system injects air into the exhaust to help lower emissions. Most of the time, P0411 is going to be caused by a failure in this ... Feb 24, 2022 · According to the GM service information, the Secondary AIR system will set code P0411 when both the AIR pump and AIR solenoid are commanded ON but the system pressure falls outside the expected 0.7-1.9 PSI above the BARO reading. Your reading of 16 PSI while operating falls just within range (1.8 PSI). April 16, 2019 by Jason. P0411 is a general OBDII trouble code, which means that it has the same meaning for the Pontiac G5 as it would any other car or truck. By definition, the code is letting you know that the ECM has detected incorrect flow in the secondary air injection system. P0411: Secondary Air Injection System → Incorrect Flow Detected.Jun 14, 2020 · Code P0411 GMC Description. The Secondary Air Injection (AIR) System aids in the reduction of hydrocarbon exhaust emissions during a cold start-up. This occurs when the start-up engine coolant temperature ( ECT) is between 5-50°C (41-122°F), and the intake air temperature (IAT) is between 5-60°C (41-140°F). The AIR pump operates 5-60 ... Regular Price: $77.60. Sale Price: $61.96. Usually Ships Out In 2-3 Business Days. Item Code: SAN-PO410. Order Qty: Options: Select Direction of handle turn Both Clockwise OFF One Clockwise OFF One Counter Clockwise OFF. Please be sure to choose the direction of turn, both clockwise off for knobs or one clockwise and one counterclockwise off ...In this video Tim Sr. and Tim Jr. demonstrate the diagnosis and repair of a Chevrolet with a P0411 Secondary air injection system airflow fault check engine ...P0411 is "Secondary Air Injection System: Incorrect Flow Detected" which usually means the vacuum line to the combi-valve is leaking. The most common issue is that the combi valve either freezes open or closed. you can test this by applying vacuum directly to the combi valave and trying to blow through it at the same time.P0411は、「二次空気噴射システムの不正な流量が検出されました」を意味する診断トラブルコード(DTC)です。. P0411 コードは、PCM が二次空気噴射システムの問題を検出したことを意味します。. このシステムは、排気流に新鮮な空気を導入し、有害な排気 ...Hey All, I recently was trying to diagnose a P0411 MIL on my 1997 Mustang Cobra and had ZERO luck finding solutions on the forums. So after painstakingly going over this super obscure emissions system, I figured I'd cover my process as well as include a diagram of the airlines that make up the Secondary Air Injector System.There are 3 tests or phases that must be done. Luck has it that only phase 1 can set P0411 so that's a start. The pass/fail criteria for phase 1 is the scanner should read 0.7 to 1.9 PSI above BARO. Then you can move on to phase 2 and 3 tests. 2014 Equinox LTZ FWD 3.6L. V-6 (LFX)Sleep above the water with these European overnight boat rentals. As the travel industry reopens following COVID-19 shutdowns, TPG suggests that you talk to your doctor, follow hea...P0411 DTC criteria from 2009 - Impala (VIN W) Service Manual. Engine Controls and Fuel - 3.5L. Circuit/System Description. The secondary air injection (AIR) system aids in the. reduction of hydrocarbon emissions during a cold start. The system forces fresh filtered air into the exhaust. stream in order to accelerate the catalyst operation.Technicians may also find a DTC P0411, which may have led to previous SAI system component replacements. An SES light illuminated due to P0411 - The diagnostic has detected an SAI system insufficient airflow due to a malfunctioning: SAI system check valve. SAI system pump. SAI system relay and related control circuit.P0411 is a general OBDII trouble code, which means that it has the same meaning for the Chevy Equinox as it would any other car or truck. By definition, the code …Re: Code p0411 2013 Chevy equinox. by kev2 » Sat Feb 23, 2019 9:22 pm. that TSB is for 2.4 LEA engine.... I really think it will be a wiring issue BUT TSB came up looking. 6 posts • Page 1 of 1. Return to “GM: Chevrolet, GMC, Buick, Cadillac”. Who is online. Users browsing this forum: and 0 guests.April 16, 2019 by Jason. P0411 is a general OBDII trouble code, which means that it has the same meaning for the Pontiac G6 as it would any other car or truck. By definition, the code is letting you know that the ECM has detected incorrect flow in the secondary air injection system. P0411: Secondary Air Injection System → Incorrect Flow Detected.Forever Stamps used to be a good bet. But not now, largely because the US Postal Service actually dropped prices on first-class postage. By clicking "TRY IT", I agree to receive n...P0401 is a code related to the EGR system. P0411 is from the secondary AIR injection system. Two different systems, two different causes. Both are part of the emission system. Either can cause no driveability issues, but they can also trigger a "limp mode" and decrease mileage/performance.Code PO411 Secondary air injection incorrect upstream flow detected. Mechanic's Assistant: Just to clarify, what's the exact code? And have you tried to reset it? I checked yesterday at the pump and the pump initially turned on for about 20 seconds. I figured the car had been started earlier and it didn't take long to warm up and pump shut off.In this study, SmartAsset looked at how PPP loan acceptance rates have changed over time in the 50 largest U.S. metro areas. Overseen by the Small Business Administration (SBA), th...Jun 14, 2020 · Code P0411 GMC Description. The Secondary Air Injection (AIR) System aids in the reduction of hydrocarbon exhaust emissions during a cold start-up. This occurs when the start-up engine coolant temperature ( ECT) is between 5-50°C (41-122°F), and the intake air temperature (IAT) is between 5-60°C (41-140°F). The AIR pump operates 5-60 ... P0411 Diagnostic theory for Shops and Technicians. When a code P0411 is set, the PCM is not seeing the front oxygen sensor voltage drop sufficiently when the Air Pump is supposed to be adding outside air in to the exhaust system to burn off the excessive HCs and CO that are created during the cold start of an engine.Sort by Oldest first. Michael Lau. 21 posts · Joined 2022. #2 · Apr 2, 2022. DTC: P0411 Secondary Air Injection System Incorrect Flow Detected. Check this part of the engine.It will run about 20sec in cold start.You can run test program on odbII anytime. My Cars:2017 Macan GTS. 2021 Audi S5 B9.5 Blue (EA839 3.0T)Labor: 1.0. To diagnose the P0411 Audi code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Code P0411 GMC Description. The Secondary Air Injection (AIR) System aids in the reduction of hydrocarbon exhaust emissions during a cold start-up. This occurs when the start-up engine coolant temperature ( ECT) is between 5-50°C (41-122°F), and the intake air temperature (IAT) is between 5-60°C (41-140°F). The AIR pump operates 5-60 ... P0411 indicates that the ECU has detected the flow from the secondary air injection system to be out-of-specification. This causes the Check Engine Light to be set and displayed on the dashboard. The light will remain on until normal operation occurs or repairs are performed. What causes the P0411 code? Air injection pump has failed. When the AIR system is inactive, the closed AIR control/shut-off valve prevents air/exhaust flow in either direction. The AIR system pressure sensor is used to monitor pressure at the AIR control solenoid valve/pressure sensor assembly inlet during the commanded ON/OFF states. P0411 Pontiac Code - Secondary Air Injection System Insufficient Flow.Diagnostic trouble code (DTC) P0411 stands for “Secondary Air Injection Incorrect Flow Detected.”. The code is logged once a potential airflow issue is detected in the secondary air system. The P0411 code will cause engine performance problems like rough running and lack of acceleration. It can also cause backfiring.Oct 11, 2017 · Articles. VW 2.5 Secondary Air Injection Incorrect Flow (P0411) The secondary air injection system's job on your VW 2.5 engine is to prevent excessive emissions. A bad component in this system is almost sure to set off a check engine light. Generally the fault code would be something like "P0411 - Secondary Air Injection Incorrect Flow". 2007 TB 4.2 code P0411 260,xxx miles Hello All, I am getting wrecked by this code. My sisters truck, desperately trying to get her through emissions here in RI.P0411: Secondary Air Injection System → Incorrect Flow Detected. The secondary air injection system injects air into the exhaust to help lower emissions. Most of the time, P0411 is going to be caused by a failure in this pump or the one way check valve. But there can be other reasons the code is thrown as well.After spending a load of cash at the dealer, this VW owner still had the Check Engine Light come on with a P0411-Secondary Air Insufficient Flow detected.Let...Automotive Mechanic. 35 years of experience. If you didn’t already erase the code, try that and see if the code comes back. If it does, the remaining causes of code P0411 include air lines that are faulty, the air injection system has excessive carbon buildup and/or there is an open or short in the wiring harness for the air injection system.hi i have a 01 jetta 1.8 turvo automatic 4 cyl, 4 door. there is a code i need to fix, so it passes DEQ inspection. po411 thanks. ...P0411 is a general OBDII trouble code, which means that it has the same meaning for the Cadillac DTS as it would any other car or truck. By definition, the code is letting you know that the ECM has detected incorrect flow in the secondary air injection system. P0411: Secondary Air Injection System → Incorrect.25. 8.5K views 1 year ago. After checking the flow at both check valves located at the rear of the engine, we found the air was not making it into the exhaust side …OBD2 Code P0411 BMW definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most important inputs by the PCM for fuel control and timing. This test monitors the number of high resolution pulses ...1) Check Engine Light. One of the early symptoms of a bad secondary air injection pump is the Check Engine warning light turning on. The engine control unit can automatically detect when the secondary air injection pump has a problem. Since the functionality of the air pump impacts the engine, any problem with it will activate the …According to the GM service information, the Secondary AIR system will set code P0411 when both the AIR pump and AIR solenoid are commanded ON but the system pressure falls outside the expected 0.7-1.9 PSI above the BARO reading. Your reading of 16 PSI while operating falls just within range (1.8 PSI). What does this mean? OBD2 Code P0411 Toyota definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. 04 vw jetta with a 1.8l engine, P0411 Secondary Air Incorrect Flow Detected, in this video I will show you how to test the secondary air system using bi-dire...19 posts · Joined 2021. #1 · Jan 6, 2021. I have a 2013 Chevy Equinox 4 cylinders LT, I bought it a while ago. I bought it even though it had the check engine light on, it I didn't care about it. Then, I realized that if the check engine was on it wouldn't remote start. I checked the code and it was a p0411 By definition, the code is letting ...gmtnation.com. Click to expand... I have gone through this P0411 code numerous times. I now have it again for the 5th or 6th time, with my 08 trailblazer. I replaced the relay (under driver side chassis) and seemed to work well for a month or so, now again getting code. I can hear the air pump kick in occasionally. FIX CODE P0410 P0411 P0412 SECONDARY AIR PUMP CHEVY, CHEVROLET, GMC, BUICK CADILLAC Great Car Scanner: https://amzn.to/2QmNBri Check out our Amazon Store ... After spending a load of cash at the dealer, this VW owner still had the Check Engine Light come on with a P0411-Secondary Air Insufficient Flow detected.Let...An increase of 2.4 psi. I then commanded the SAI system on (pump and valves open) with the engine running the secondary air injection pressure sensor went from 14.2 to 15.7. And bank 1 pressure raised to 15.66 and bank 2 pressure raised to 15.80. For secondary air pressure of 1.45psi and 1.48 psi. I believe that is within normal range.Sleep above the water with these European overnight boat rentals. As the travel industry reopens following COVID-19 shutdowns, TPG suggests that you talk to your doctor, follow hea...P0411. Hey guys, I started my truck after work a few days ago and the check engine light came on immediatley. I bought a scan tool the next morning and pulled code P0411 (Secondary air injection incorrect upstream flow detected). I have reset the light twice and it will stay off until the truck sits for 6+ hours then it will come back on again ...2.4 liter chevy equinox check engine light code po411. 10. Asked by rigger71 Nov 29, 2019 at 09:44 AM about the 2014 Chevrolet Equinox 2LT AWD. Question type: Maintenance & Repair. was told at dealer head would have to …P0411 Diagnostic theory for Shops and Technicians. When a code P0411 is set, the PCM is not seeing the front oxygen sensor voltage drop sufficiently when the Air Pump is supposed to be adding outside air in to the exhaust system to burn off the excessive HCs and CO that are created during the cold start of an engine.The Check Engine Light (MIL) is on and fault code P0411 (16795) is stored in the fault memory. The secondary air injection (AIR) system blows air into the exhaust, behind the exhaust valves, via a passage in the cylinder head. This extra air injection takes place on a cold engine (5°-33° C engine coolant temperature) for about 100 seconds and ...Fault code P0411 is logged when the engine’s primary computer, the powertrain control module (PCM), has detected an issue with the secondary air system supply. This occurs when the flow of secondary air does not match the expected flow determined by the PCM. The secondary air injection system (SAIS) is used to pump ambient air into the ...Articles. VW 2.5 Secondary Air Injection Incorrect Flow (P0411) The secondary air injection system's job on your VW 2.5 engine is to prevent excessive emissions. A bad component in this system is almost sure to set off a check engine light. Generally the fault code would be something like "P0411 - Secondary Air Injection Incorrect Flow".Hey All, I recently was trying to diagnose a P0411 MIL on my 1997 Mustang Cobra and had ZERO luck finding solutions on the forums. So after painstakingly going over this super obscure emissions system, I figured I'd cover my process as well as include a diagram of the airlines that make up the Secondary Air Injector System.P0411: Secondary Air Injection System → Incorrect Flow Detected. The secondary air injection system injects air into the exhaust to help lower emissions. Most of the time, P0411 is going to be caused by a failure in this pump or the one way check valve. But there can be other reasons the code is thrown as well.If you’re looking for a way to give the interior walls of your home a unique textured look, you might want to consider applying clay plaster from American Clay. Made from natural c...How to Fix P0411 Engine Code in 3 Minutes [2 DIY Methods / Only $9.68] - YouTube. nonda. 91.9K subscribers. Subscribed. 436. 108K views 3 years ago UNITED STATES. …Suzuki Swift 1.4 Boosterjet 2021 129.0PS Bosch MG1CS026 – Stage 1 tuning file; Dacia Duster 1.5 BlueDCI 2021 115.0PS Bosch MD1CS006 – Stage 1 tuning fileAfter checking the flow at both check valves located at the rear of the engine, we found the air was not making it into the exhaust side of the system. We fo...I didn’t need a survey to tell me that AT&T Park in San Francisco has the best hot dogs in Major League Baseball. I would have likely made that declaration while sitting in some le...By definition, the code is letting you know that the ECM has detected incorrect flow in the secondary air injection system. P0411: Secondary Air Injection System → Incorrect Flow Detected. The secondary air injection system injects air into the exhaust to help lower emissions. Most of the time, P0411 is going to be caused by a failure in this ...Automotive Mechanic. 35 years of experience. If you didn’t already erase the code, try that and see if the code comes back. If it does, the remaining causes of code P0411 include air lines that are faulty, the air injection system has excessive carbon buildup and/or there is an open or short in the wiring harness for the air injection system.Hey All, I recently was trying to diagnose a P0411 MIL on my 1997 Mustang Cobra and had ZERO luck finding solutions on the forums. So after painstakingly going over this super obscure emissions system, I figured I'd cover my process as well as include a diagram of the airlines that make up the Secondary Air Injector System.538 posts · Joined 2017. #1 · Oct 3, 2017. 2014 Terrain 2.4 71,000 miles. Anybody else have a check engine light with a P0411- secondary Air Injection System Incorrect Flow Detected? Would the fix be covered under the emissions warranty? 2014 Equinox LT2 2.4L I4 Leather heated seats, remote start, power lift gate. Save Share.2008 Chevrolet Colorado Ext Cab 3.7L I5 K&N 63-3065 Intake Denso ITV16 SuperSparks Flowmaster 40 Series Cat BackNational Highway Traffic Safety Administration National Highway Traffic Safety Administration Good day to you all, I am new to the forum and this is my first post. I have been pouring over the Ross-tech forum and the VWVortex forums the past few weeks in an attempt to troubleshoot and repair the P0411 code my daughter's 1998 VW Beetle has thrown. I found a wealth of information and went down various troubleshooting paths so far.the P0411 code: secondary air pump failure. I searched for info on this subject for months before finally fixing this problem on our 2000 V6 3.8 and completed the repair last week for $93 and 2 hours of my own labor. If your getting this code it can be 2 things the smog pump is bad (most likely as it sits in a bad area that collects water) or ...11 posts · Joined 2008. #1 · Sep 17, 2016. 2004 E46 / 330Ci / ZHP // 152Kmi. Issue: code P0411 – Secondary Air Injection System Incorrect Flow. Recently, my 330 has thrown the Service Engine Soon (SES) light which was the P0411 code. My first “fix” was to replace the check valve at the exhaust manifold. Result = “no joy” (still has ...Andreas Antonopoulos received more than 150 bitcoins in donations after being mocked on Twitter by a man known as "Bitcoin Jesus." This post has been corrected. A bitcoin personali...Error Code P0411 ?!?! WHAT DO I DO?? Here's a few quick checks for the Secondary Air Injection pumps.This Simple Cooking with Heart recipe is a yummy twist on traditional chili, switching in chicken for ground beef. It's easy to make in a hurry! Average Rating: This recipe lives u...P0411 Air Injection System Incorrect Flow.538 posts · Joined 2017. #1 · Oct 3, 2017. 2014 Terrain 2.4 71,000 miles. Anybody else have a check engine light with a P0411- secondary Air Injection System Incorrect Flow Detected? Would the fix be covered under the emissions warranty? 2014 Equinox LT2 2.4L I4 Leather heated seats, remote start, power lift gate. Save Share.

P0411 is a general OBDII trouble code, which means that it has the same meaning for the Pontiac Grand Prix as it would any other car or truck. By definition, the code is letting you know that the ECM has detected incorrect flow in the secondary air injection system. P0411: Secondary Air Injection System →. 2rawtooreal twitter

po411

2011 Malibu 2.4 Ecotec P0411 code. Jump to Latest Follow. 33K views 9 replies 5 participants last post by TheSilverOne Jan 21, 2014. M. mn_powderhound Discussion starter. 3 posts · Joined 2014. #1 · Jan 19, 2014. The dealer tells me this code is for the secondary air valve and they want to charge $365 to replace it.P0411 code stands for Secondary Air Injection System Incorrect Flow Detected. It indicates a potential air flow issue in the secondary air injection system, which is used to pump …Labor: 1.0. To diagnose the P0411 Volkswagen code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Jun 2, 2008 · TT (Mk1) Discussion - P0411 Secondary Air Injection System Code SOLVED! - For a very long time I have had the infamous secondary air injection code thrown... ***** 16795 - Secondary Air Injection System: Incorrect Flow Detected P0411 - 35-10 - - - Intermittent... P0411: Secondary Air Injection System → Incorrect Flow Detected. The secondary air injection system injects air into the exhaust to help lower emissions. Most of the time, P0411 is going to be caused by a failure in this pump or the one way check valve. But there can be other reasons the code is thrown as well.The Check Engine Light (MIL) is on and fault code P0411 (16795) is stored in the fault memory. The secondary air injection (AIR) system blows air into the exhaust, behind the exhaust valves, via a passage in the cylinder head. This extra air injection takes place on a cold engine (5°-33° C engine coolant temperature) for about 100 seconds and ...19 posts · Joined 2021. #1 · Jan 6, 2021. I have a 2013 Chevy Equinox 4 cylinders LT, I bought it a while ago. I bought it even though it had the check engine light on, it I didn't care about it. Then, I realized that if the check engine was on it wouldn't remote start. I checked the code and it was a p0411 By definition, the code is letting ...hi i have a 01 jetta 1.8 turvo automatic 4 cyl, 4 door. there is a code i need to fix, so it passes DEQ inspection. po411 thanks. ...We're not all raising our kids the same way. And if that wasn't apparent before the pandemic, good ole' corona, lockdowns, mask-wearing ordinances, and a fiery presi...Te suministramos todo lo que necesitas saber sobre el código DTC P0411 Descripción, causas, síntomas y posibles soluciones. LEER SOLUCIÓN DEL CÓDIGO O...Jul 29, 2011 ... My check engine light is on and the code its giving me is P0411-Secondary Air Injector Incorrect Flow. Does anyone know what this means and how ...Apr 16, 2019 · By definition, the code is letting you know that the ECM has detected incorrect flow in the secondary air injection system. P0411: Secondary Air Injection System → Incorrect Flow Detected. The secondary air injection system injects air into the exhaust to help lower emissions. Most of the time, P0411 is going to be caused by a failure in this ... P0411: Secondary Air Injection System → Incorrect Flow Detected. The secondary air injection system injects air into the exhaust to help lower emissions. Most of the time, P0411 is going to be caused by a failure in this pump or the one way check valve. But there can be other reasons the code is thrown as well..

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