Integrated Engineering PCV Delete after 2 weeks

[devlad]

I installed one of these on my TFSI Quattro 2 weeks ago after a recommendation from a mechanic and time researching problems with this engine. However, I'm not sure about it now.

Should I return to stock? Or is this normal? I've noticed no performance issues.

Seems to be leaking oil from here:


Unsure, but seems to be more on this side too:


Main body:

[Nollywood]

Pictures are missing.

[devlad]

Pictures are missing.

Hmm, I can see them. I'll upload to a different service

[devlad]

Images here: https://imgur.com/a/tpemDfG

[EvolutionArmory]

Unless you’re running a turbo that requires a PCV delete or catch can, put your OEM PCV parts back in.

Theses deletes usually cause more problems than they’re worth. Throw a new valve cover gasket on it and put it back to stock.

PCV delete plates and cold air intakes are neck and neck for the most useless mods for these cars.

[devlad]

Unless you’re running a turbo that requires a PCV delete or catch can, put your OEM PCV parts back in.

Theses deletes usually cause more problems than they’re worth. Throw a new valve cover gasket on it and put it back to stock.

PCV delete plates and cold air intakes are neck and neck for the most useless mods for these cars.

Will do

[texasboy21]

You have effectively pressurized your crankcase forcing the oil vapor to escape wherever it can. Proper crankcase ventilation is key.

[boostin20v]

I've been running a knock off plate for 40-50k miles without any new leaking issues. That said I could see the plate causing an already bad gasket to be more visible.

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[devlad]

I've been running a knock off plate for 40-50k miles without any new leaking issues. That said I could see the plate causing an already bad gasket to be more visible.

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Even around the cap on the manifold? (Pic 1).

I'm replacing the gasket regardless.

[boostin20v]

Nothing around the manifold cap.

[xDeadTacox]

I have the same plate and I have oil leaking on the turbo side of my engine as well. Just bought a new valve cover gasket and I will be fully deleting my PCV, as the plate alone only causes issues.

[B7TitaniumA4]

I ran a pcv delete for a few months until I could get some new parts. Didn’t notice any leaks that I didn’t already have until I installed new valve cover, pcv breather tube, and pcv, now I think my oil filter housing is leaking!!! DOH!!! Everything else near the top is bone dry now. 🤷🏻*♂️🤷🏻*♂️🤷🏻*♂️

[devlad]

Hmmm, while replacing with a new OEM PCV, I noticed a lot of crusty carbon chunks. Guess that's one of the DI engine woes.



Aside from that, new OEM parts done. I guess I learned a lesson.

[EvolutionArmory]

Hmmm, while replacing with a new OEM PCV, I noticed a lot of crusty carbon chunks. Guess that's one of the DI engine woes.



Aside from that, new OEM parts done. I guess I learned a lesson.

It happens bud. The last thing you want is a serious overpressure situation. It can get so bad that the rear main and front crank seal can leak. The OEM PCV system really is the best solution and these block off plates are a solution looking for a problem in most cases.

[EvolutionArmory]

I have the same plate and I have oil leaking on the turbo side of my engine as well. Just bought a new valve cover gasket and I will be fully deleting my PCV, as the plate alone only causes issues.

You should learn from the mistakes made in this thread. Put your PCV system back to stock, not delete it entirely 🤣🤣

You’re going the wrong way.

[devlad]

You should learn from the mistakes made in this thread. Put your PCV system back to stock, not delete it entirely 🤣🤣

You’re going the wrong way.

Yep, though I do understand the confusion.

I had a VW & Audi mechanic tell me to it was fine to delete it. Cases are made either way online as well, and it's hard to get at the absolute truth if you're a newbie to these motors (as I am).

It's not always clear cut, but now I know from experience. Best approach is if you don't know for certain, stay stock.

[xDeadTacox]

You should learn from the mistakes made in this thread. Put your PCV system back to stock, not delete it entirely 🤣🤣

You’re going the wrong way.

Really? Hmm, I read a thread (albeit older) on here that was some ungodly amount of pages long, where people removed the system entirely, kept the oil seperator, and just had the gasses vent from that PCV plate to the ground or a seperate can with no return line, keeping it from re-entering the intake path.

[EvolutionArmory]

Really? Hmm, I read a thread (albeit older) on here that was some ungodly amount of pages long, where people removed the system entirely, kept the oil seperator, and just had the gasses vent from that PCV plate to the ground or a seperate can with no return line, keeping it from re-entering the intake path.

There’s tons of threads on the internet that talk a lot about doing things wrong. 🤣

There’s no benefit to removing your PCV system if you have a working system and your car isn’t heavily modified like a big turbo that won’t let you use the stock PCV system. When you start deleting things like PCV, running the wrong oil pump or other pointless things, you’re basically just making more work for yourself when things go wrong.

[Brillo]

There’s tons of threads on the internet that talk a lot about doing things wrong. 🤣

There’s no benefit to removing your PCV system if you have a working system and your car isn’t heavily modified like a big turbo that won’t let you use the stock PCV system. When you start deleting things like PCV, running the wrong oil pump or other pointless things, you’re basically just making more work for yourself when things go wrong.

Sure, regarding the OEM PVC system you can find threads and advice going both ways (even VW mechanics) - stay stock vs delete. As a general rule you will find that those technical folks who really understand how the system works will not recommend the 'PVC delete' approach. While it is true that the OEM system can sometimes be a bit problematic, a little bit of system understanding and preventative maintenance can solve these issues. All this PM information is available on this forum.

Start here: https://www.audizine.com/forum/showt...ight=Shiro1745

Strongly suggest not ever using a system that vents to atmosphere. Highly polluting and not legal anywhere in US, Canada, and all of Europe.

[xDeadTacox]

There’s tons of threads on the internet that talk a lot about doing things wrong. 🤣

There’s no benefit to removing your PCV system if you have a working system and your car isn’t heavily modified like a big turbo that won’t let you use the stock PCV system. When you start deleting things like PCV, running the wrong oil pump or other pointless things, you’re basically just making more work for yourself when things go wrong.

Okay, i guess I can go back to the OEM system, just unfortunate the valves fail often unless theyve been updated?

Sure, regarding the OEM PVC system you can find threads and advice going both ways (even VW mechanics) - stay stock vs delete. As a general rule you will find that those technical folks who really understand how the system works will not recommend the 'PVC delete' approach. While it is true that the OEM system can sometimes be a bit problematic, a little bit of system understanding and preventative maintenance can solve these issues. All this PM information is available on this forum.

Start here: https://www.audizine.com/forum/showt...ight=Shiro1745

Strongly suggest not ever using a system that vents to atmosphere. Highly polluting and not legal anywhere in US, Canada, and all of Europe.

Thats one of the many threads I read that gave the VTA option as a legitimate (albeit non-eco friendly) option to the PCV system.

[EvolutionArmory]

I replaced my OEM valve at like 160K. My new R revision valve has like 45,000 miles on it already.

I replaced mine as soon as I saw oil leaking from the bolts and oil cap. No drivability issues had come up yet though.

[Brillo]

Okay, i guess I can go back to the OEM system, just unfortunate the valves fail often unless theyve been updated?

Thats one of the many threads I read that gave the VTA option as a legitimate (albeit non-eco friendly) option to the PCV system.

Right. I don't think Shiro was promoting VTA so much as saying this is what some folks do with a catch can approach. But mainly I suggest his thread so folks will get a good understanding of the VC and PCV valve interactions and the crankcase pressure control for our FI engines.

There is still a debate going on about how much recirculating crankcase blowby gasses into the induction system contributes to carbon caking of the intake valves. VTA may or may not alleviate this problem with DI engines, the jury is still out as far as I know. Part of the problem is that there are too many really crappy, ineffective catch cans on the market whether they recirculate to the pre-TC port or VTA.

[KewlAid83]

funny u mention that thread bc I totally just read that and albeit this is an older one now too I found it funny you mentioned it. I'm pretty good with cars but my 08 A4 Quattro is my first turbo car (that I'm in love with) and was really debating on doing the pcv delete kit as preventative maintenance more or less bc milage is getting up there and trying to get a hand on things before they go bad really and my thought was "well if not really needed and they are notorious for going bad then why not delete it.... thank goodness I do my research.... lol well when involves my car at least ... before doing things I don't quite understand.