Dtc p0171 audi

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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..

Dtc p0171 audi

Remember me. Hello and welcome to the Audizine Forums! As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the Audizine Family today! If you're new to forums in general, be sure to check out the Forum FAQ. To start viewing posts, select the forum section that you want to visit from the selection below. Results 1 to 5 of 5. Thread: Fault Code P Thread Tools Show Printable Version. My Photo Gallery: 0. My Classifieds: 0. Fault Code P Guest-only advertisement. Register or Log In now! I searched the forums and didn't come up with a resolution to exactly what I'm experiencing

Register or Log In dtc p0171 audi Check your intake manifold, the tumbler flaps are a common failure area and can cause vacuum leaks. I ended up replacing all the check valves as two were in real bad shape.

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.

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.

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You'll want to also read our article on short and long term fuel trims to help understand the operation of the engine. Find all posts by gimmespeed JavaScript is disabled. The time now is AM. Quote message in reply? So I would fix it then it would pop off and happen again. Hey so i recently bought a Audi a4 premium quattro with k miles and i recently got a check engine light saying my car is running lean on idle and it feels weird kinda like it wants to shut down but not really. Find More Posts by Xbachelor. If you have a 1. If you're on a tight budget, start there, but that may not be the fix for certain. Personally I think it's a vacuum hose leak, but I'm not sure how to go about checking for that.. Note: This DTC is very similar to P, and in fact your vehicle may show both codes at the same time. Send a private message to secsup.

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.

There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. My 02 has thrown that code twice, both times it took about 5 minutes to locate the split vacuum hose under the hood. My wife's got a A4 1. Fault Code P Guest-only advertisement. If anyone has any other suggestions as to what might cause this code, I am open to advice. Again thanks everyone for your input and information. Log in. I didnt realise VCDS would give more info. Find More Posts by audijet. Doubt the two things are related. Find More Posts by namjachoi.