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P0171 OBD-II Trouble Code: System Too Lean (Bank 1) - YourMechanic Usually, the error should be displayed as a code and a short text definition. It might also be damaged, so check its values on idle and on pressure and replace it if faulty. New data released by Ipsos this morning has shown that around 55% of Britons expect the Tories to lose seats on Thursday, with 45% expecting Labour to pick up support. The first things that you need to focus on are the MAF sensor and the vacuum hoses. Once you confirm that the P0171 error code is what's your vehicle suffering from, you can go ahead and test the following DIYs. Cash Cars Buyer is one of the top-rated car removal companies in the nation that guarantees to pay you the top dollars and will provide you with free towing despite your living location around the United States. If you would like to feature your brand or write a cost guide for us feel free to reach out to contact (at) costhack.com. Here, the best way to prevent filter issues is to regularly change your filter. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light . P0420 Code - What It Means, Can You Drive, How To Fix - FIXD Best OBD2 I too am getting the codes saying that bank one and bank two are running lean. This means that the air to fuel mixture will be unbalanced and the check engine light may come on the dashboard. This rough idle is a clear indication that you are having a problem with your ignition system. Thats why a lean air to fuel mixture can appear and ruin your engine performance. Consulting your local mechanic is also an option. your travel and car related needs. Is your car working strangely lately? Mechanics will usually use advanced equipment to troubleshoot the problem. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $50.0 off as a credit towards the repair. That will change the air-fuel mixture. Scanning the car for codes is probably the best idea in these situations. To clear or reset the P0171 code, you need to use an OBD2 scanner. When dealing with a P0171 code, some suggested DIY's by professional mechanics and automotive experts to help you resolve the problem from home without needing a professional mechanic. If you have a faulty fuel pump, you can also expect to pay more than $200 for a new unit. Your email address will not be published. So, if you are experiencing an issue like this, the best thing you can do is diagnosing the problem with a code reader and see what is the real issue and then find the real culprit. Your vehicle is getting too much air and not enough fuel, creating a lean condition that disrupts the fuel efficiency of your vehicle. Once these things are deemed good, you can move on.