While uncommon, it is possible that a check engine light may come on after installing a K&N® air filter or performance intake system-but this does not necessarily mean that there is something wrong with your air filter or intake system. On older fuel-injected engines and carbureted engines, the filter is found in the air cleaner, which sits atop the engine. Air that’s scooped up by the front of the vehicle moves through an air intake tube into the air filter inside the box. Can you help me with a reliable and honest mechanic in south Georgia/North Florida area that knows how to work on NA Miata? The computer waits a certain number of drive cycles without seeing anomaly. First, put the stock setup back on. Clean or replace (if is necessary) the MAF Most of drivers feel annoying when they see the Check Engine Light still turn of even the car problem was solve. All PCM codes start with the letter "P" for Powertrain. First thing to do is check for recall regarding ECU reprogram. Since the dealer where I purchased the truck was simply too busy to look at the problem, I purchased a code scanner and discovered that both oxygen sensors in front of the catalytic converter were faulting (I had 33k miles on my truck at the time). Many codes don’t just clear that the specific moment something is fixed. Thanks for all of the responses, and sorry it took so long for me to write back. If no vacuum leaks are found, it is likely a restriction in your exhaust. Lexus Check Engine Light Codes. Roberto, Thanks. My 2004 S10 Blazer 4×4 with 95,000 miles has recently been difficult to start intermittently. Dirt can build up on the mass airflow sensor. Made with in Atlanta. If they do, then report the specific codes. Unfortunately, I’m still having the same problems as before. Please help me. So I Asked the guy at autozone if he knew what it was NOPE!!!! Turn off the car, and I might get under 10 minutes before I would need a jump. If you have found a remedy please let me know. The Check Engine light can illuminate for a variety of reasons. Thank you that was very helpful and inexpensive, Very helpful, thanks for diagnosis steps because the MAF isn’t cheap but it made my car work again Air Filter. Locate your air intake box that houses your air filter. The MAF sensor hot wires are very sensitive, and MAF sensor cleaner cleans and dries very quickly. However, it will cause an increase in fuel consumption and rough operation. Since both failed at the same time, I’d suspect an electrical problem rather than a sensor but I don’t know the exact code you saw. Sustained driving can lead to internal engine failure. Check engine light code P0101 is set when the measurement of air entering the engine by the mass air flow sensor is outside of the manufacturer’s specified range. It is this generic function of the “check engine” light that can frustrate drivers when it lights up. I assume so for $50. What codes came up after installing that so called air filter? Could also be the MAF is dirty. If they both really did fail, you should have a significant oil consumption problem or they were defective as manufactured. The check engine light (service engine soon) comes on when a problem is detected by the self diagnosis system of your vehicle. Sometimes the light will come on for a minor reason, but there is always a chance of a bigger problem. Reset the code and make a test drive. Replaced the filter and cleaned out the box. 2016 Nissan Sentra SV (I also replaced the air filter). Thanks,, this let’s me know what to expect when I take it to get repaired, How can it be exhaust stopped up if MAF was making a gear noise. K&N will let a wee bit more air in; and more dirt to go with it. So clear the codes and see if they come back. Does the problem go away? Use mass air flow sensor cleaner (DO NOT SUBSTITUTE FOR ANY OTHER KIND OF CLEANER) to clean out the MAF sensor. If your check engine light comes back on with diagnostic trouble code P0101, examine the air intake system for vacuum leaks. If both o2 manifold sensors are bad than u may have a vacuum leak. Reconnect the air intake snorkel, close the air intake box, and reconnect the MAF sensor harness. Regular Gas: A Complete Guide for 2021, 2020 Holiday Gift Guide: 16 Unique Gift Ideas for Car Enthusiasts. It is possible that the problems are not related to the air filter and just a coincidence. The result is an engine that is not able to reach operating temperature. The check engine light comes on when your car’s computer detects an issue within the powertrain. I forked out the nearly $50.00 and installed the pre-oiled filter with hopes that I would gain at least a few mpg’s. We wrote about some of the common codes, including possible causes and diagnostic information. This will help you find a quality mechanic! Clear the check engine light code using the FIXD app and complete several drive cycles to ensure this was the correct fix. Hi Heather, I wish I had an answer but I’m in the same boat as you with my 2012 Nissan Maxima. As you said “although the truck seemed to be running fine” So by “symptoms” do you just mean that the light is still on? You do need to report the very exact and specific codes in the “P0123” format. If that happens, have your mechanic check the air filter among other diagnostics. Check the condition of MAF. Check your air filter, if you can’t see light through the filter, then it … Mass Air Flow Sensor Welcome to the Lexus Check Engine Light codes page. It’s probably because I have never believed that the cost associated with a K&N filter would be worth it in the long run. Mass Air Flow (MAF) Circuit/Performance Malfunction. Did what I was instructed to do and the problem was however remedied which was nice. It is not difficult or expensive, and may improve performance. Let us know if you liked the post. The air filter cleans incoming air that will be mixed with the fuel and prevents dirt from building up on sensors. could this be due to the filter? If not fixed what will happened. This is not recommended because the code for the problem will be erased. That’s the code FIXD gave me. I love my FIXD! This didn’t really change the symptoms. The orange check engine light is a car's way of telling you something is wrong. Suggest to replace things as they were, buy a new air filter of the same type as the original if necessary. IF u have code for lean condition. Very informative. Tell us the year, make, model and engine size of your truck. A vacuum leak will usually cause a lean code,and live air alpha percentages will be in the 120% higher ranges.Vacuum gauge is a very useful tool. When your vehicle has a problem and your check engine light comes on, the On-Board Diagnostics (OBD) system in your vehicle will also trigger a code that can be used to diagnose what might be wrong. It should never be ignored. Can FIXD help me diagnose issues without check engine light on? This may be as much as you need to fix P0101, however, we recommend completing step 2 as well. Seemed like a very good diagnosis, but what does that have to do with my battery, something is killing my battery. Do this by spraying each side of the MAF sensor for 3-5 seconds, waiting 10 seconds, and then spraying it again for 3-5 seconds. Currently, FIXD only diagnosis when the Check Engine Light is on. All Rights Reserved. I was towing a heavy trailer and was ingesting lots of air so the code wasn’t surprising. Here are the 10 most common issues that trigger it. The codes have been the same. I started and stopped engine few times and check engine lights went off. But perhaps the biggest check engine light problem is that, for many motorists, it’s just too easy to ignore, especially if the vehicle isn’t exhibiting any specific mechanical issues. Bought a K&N filter for a 99 Lincoln navigator, aprox 50 miles later Chek Engine light came on. Clear the check engine light code using the FIXD app and complete several drive cycles to ensure this was the correct fix. I’m keep getting fault code p0101 after changing air MAF sensor, checked air intake snortel plus wiring and even changed with new air filter. A repair of a vacuum leak; A replacement of a faulty fuel injector, fuel pump, or fuel regulator; Replacement of an excessively … Is it a failed O2 sensor or a failed HEATER for the O2 sensor? FIXD explains the symptoms, causes, and severity of P0175. I just recently got the out-of-range code common to over-oiled filters. I have noticed that it does take longer for the light to come on again. Not sure what to do next. After several weeks of the occasional hard/long start issues, the SES light came on and my FIXD showed this P0101 code. While it is true that reusable air filters contaminate mass air flow sensors, it usually takes awhile like three months or more. So, I then replaced the filter and MAS sensor. My guess is the O2 sensors are ok, but their readings are confusing the ECM b/c the new filter has changed the airflow characteristics to the MAF. There is no check engine code for a dirty air filter. I could see a torn intake plenum after maf causing bad o2 issues. I have a 1997 Miata that we know is running rich and it feels like it is miss-firing but no check engine light. Regular vehicle maintenance—including regular oil changes and air filter services—can help prevent premature engine wear-and-tear, and can potentially save you thousands down the road. There are many o2 codes. The drive the truck normally & see if this fixes the check engine light problem. So far we love our FIXD. will this hurt my engine if I continue to use this filter. Troubleshoot the Check Engine Light, for Free. The code doesn’t go away but there is no check engine light. Proceed one repair at a time, don’t try to fix everything at once in case the codes are false for some reason. Is it important to use this filter Holiday Gift Guide: 16 Unique Gift Ideas car. Go with it now I ’ ve never experienced it myself replace ( if is necessary the. Will be erased need to be running fine other diagnostics with JavaScript enabled, check engine light will go.... Newsletter to receive the latest news from FIXD not related to the driver and will not make it set code... Make a test drive I continue to use this filter MAF ) sensor measures the amount of air entering engine. Receive the latest news from FIXD the drive the truck seemed to be lead to fix. Should look next warranty as they were, buy a new air filter reduces the amount of air so code! 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