Dtc p0171 audi

B5 Models Please discuss all - B5 A4 topics here Thread Tools, dtc p0171 audi. I recently got a check engine light on my A4 Quattro with about K miles. After doing some reading, it appears that it is either an 02 sensor, MAF sensor or vacuum hose leak around the engine.

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Dtc p0171 audi

Thread Tools. Well got in my car today after coming back from the car wash to clean up and take care of my debadging I did and she decides to pay me back by throwing on the check engine light next time I went out. I do not know what that means at all or where to start at all besides knowing it has to do something with fuel and it is not getting enough fuel I would assume. Curious if anyone has any idea what it could be or if there is something common or notorious that it could be. Background information. Bought car used, about a month ago. At time of purchase timing belt and water pump done. Any suggestions or tips would be much greatly appreciated. I switched back to stock mode tune and the light was still on. Thanks again View Public Profile. Send a private message to blackops. Find More Posts by blackops. It could also be the MAF sensor that needs to be cleaned out.

Insert Quotes Quotes Post Reply. Send a private message to FrankM5, dtc p0171 audi. I was able to fix the bank 2 by resetting it via vcds, but i cant figure out how to correct bank 1 too rich, been driving about 2k miles with check engine.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. The car seems to be running fine other than the EML on the dash and a slight fluctuation in revs when stationary. I'm thinking I should look to change the Diverter Valve first?

Thread Tools. Well got in my car today after coming back from the car wash to clean up and take care of my debadging I did and she decides to pay me back by throwing on the check engine light next time I went out. I do not know what that means at all or where to start at all besides knowing it has to do something with fuel and it is not getting enough fuel I would assume. Curious if anyone has any idea what it could be or if there is something common or notorious that it could be. Background information. Bought car used, about a month ago.

Dtc p0171 audi

JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser. In the world of automotive diagnostics, the dreaded check engine light can cause anxiety for many drivers. It serves as a warning that something may be amiss under the hood. One of the common culprits behind this warning is the P engine code. In this blog post, we'll explore what code P means, its significance, and how it can affect your vehicle's performance. Code P, also known as the "Fuel Trim System Too Lean Bank 1 ," is a diagnostic trouble code that your vehicle's onboard computer ECU generates when it detects an imbalance between the air and fuel mixture in the engine's cylinders. To fully grasp the implications of P, let's break it down:. Several factors can trigger the P engine code, and diagnosing the exact cause may require the expertise of a mechanic. However, here are some common culprits:.

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If anyone has any other suggestions as to what might cause this code, I am open to advice. Thank you in advance. Find all posts by gimmespeed Curious if anyone has any idea what it could be or if there is something common or notorious that it could be. Fault Code P Guest-only advertisement. Hello and welcome to the Audizine Forums! View Public Profile. Personally I think it's a vacuum hose leak, but I'm not sure how to go about checking for that.. This is what I am planning to do. Remember me. I ended up replacing all the check valves as two were in real bad shape. I replaced my MAF sensor not 5 thousand miles ago, so I'm pretty confident it's not that.

One of the most common trouble codes with the Audi A4 is P It indicates that your Audi A4 is running lean on the bank one side. It is also one of the most common codes.

I didnt realise VCDS would give more info. Also, this morning when warming up the car, it suddenly died. At time of purchase timing belt and water pump done. The car seems to run fine, but I have to keep clearing the CEL every days. This is an older thread, you may not receive a response, and could be reviving an old thread. Send a private message to namjachoi. Just wonder is the car still safe to drive in the next couple days until I have time to bring the car to the shop. Clean MAP sensor there is a special two can cleaner set at any auto parts store 2. Also, I was hoping that the part s weren't going to be very expensive. Basically this means that an oxygen sensor in bank 1 has detected a lean condition too much oxygen in the exhaust.