Audi Q3 P2279, P2187, Lean Faults

[@sherifnedal]

So knowledgable great fix just what I needed thanks

[@RealAutoSolutions]

Thanks!

[@vboccanf]

Great video! Can a leaking Rear Main Seal cause this same issue? If so how do you know if it's the seal or the PCV?

[@RealAutoSolutions]

Absolutely it can, reasonably common on these VAG models too. Essentially I would block the pcv like I did in this video & if the fuel trims don't improve then you likely have a problem elsewhere

[@julienwinterstein2536]

Hi, I also have these two fault codes on my EA888.2, except that literally everything is new... even the PCV and its hoses, original Audi. The RMS does not appear to be leaking. Besides, I no longer have the slightest oil leak. If I reset the FTs by clearing the faults with VCDS, they drop to 0% (normal). After that, I start the engine. During the first three minutes when the engine is running (with FTs always at 0), you don't feel the slightest tremor, not a single variation in engine speed. The moment the STFT begins to appear, the values ​​instantly rise to +25%, and the LTFT rises to past 40%! After that the engine starts to run less well, the idle is not chaotic, but certain increases in revs are sometimes felt, and with the foot off the pedal in 2 for example, the rev counter needle goes up/down. I strongly suspect the lambda sensors or the MAF. The car has 175,000 kms, both are original. What do you think? Thank you!

[@brencole7092]

Well done, thank you for sharing.

[@RealAutoSolutions]

Thanks mate

[@PlanB-3751]

Great video my friend 🎉👍 Question: What does it mean , if the engine shakes hard almost is going to shuts off when I try to take off the oil cap? What could possibly cause that? Any idea would be appreciated🙏 Cheers.

[@RealAutoSolutions]

It sounds like what you have in this video, a split PCV diaphragm

[@PlanB-3751]

@@RealAutoSolutions Thank you for the reply my friend 🎉 Ok, I'll check it out, and I'll let you know👍 Cheers 🥂

[@kukrudz]

very good, however easier to watch in landscape format

[@RealAutoSolutions]

Oh! Thank you for the input! I will do that from now on mate. Appreciate you commenting

[@thomasdaigle8894]

Great video man I have had the same problem with my wife’s car and I replaced the pcv unit. It didn’t help anything so I am getting a new one and I am going to smoke it as well. I do think I have a bad one tho cause this weekend I was looking into it and I removed the mass air flow connector and a few minutes later it started smoking like crazy and it took a bit to stop. I think the positive pressure pulled oil out of crankcase. I had to put a container of oil in it. What do you think?