Dtc p0171 audi

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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.

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.

Thanks again P P System too lean Bank 1 and 2. Send a private message to audijet.

B5 Models Please discuss all - B5 A4 topics here Thread Tools. 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. I replaced my MAF sensor not 5 thousand miles ago, so I'm pretty confident it's not that. Personally I think it's a vacuum hose leak, but I'm not sure how to go about checking for that.. Should I just inspect hoses around the engine while the car is running and listen for a hissing noise or something?

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.

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.

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Newbie here. Trending Topics. This is what I am planning to do. View Public Profile. MPG has dropped from 26ish mpg to 22mpg. This is more likely an O2 sensor, but checking the other avenues out wouldn't hurt. Quote message in reply? Find all posts by mazzman I searched the forums and didn't come up with a resolution to exactly what I'm experiencing Send a private message to ObnoxiousDrunk.

Home » OBD Codes. A P code appears in the engine control unit when the oxygen sensor on bank 1 recognizes too lean of an air-fuel mixture for the sensor to correct it. Several different things could cause this trouble code.

Thread Tools Show Printable Version. Thanks again I am thinking it is a vacuum leak of some sort but am wondering why the CEL clears for days, then comes back. Background information. Advanced Search. 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. Check engine light is on. I won't be able to get it into his shop for another week. For a better experience, please enable JavaScript in your browser before proceeding. Mine had a bad elbow and a vacuum hose that kept coming off. Doubt the two things are related. I know its easy and cheap to replace them so I'm more than willing to do it myself, in fact I don't want to bring it anywhere because every mechanic I've been to screws me or tries real hard to.