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Replaced PCV now engine has gone bonkers

funkymcbain

Ready to race!
So I replaced my PCV with a new one. I didn't have any codes but I've been dealing with oil leaks, the main one remaining now is the rear main. Swapped the PCV and now the engine acts weird when coming off the throttle. I have a manual so imagine driving along, coming to a stop pop it to neutral and then at that point the revs drop to where they should be, around 800 and start to climb. Sometimes they will start to climb to 1600 or so and as soon as I come to a full stop they drop to like 1200, hang there for a sec and drop to 800. The car thrown a CEL so I will scan it but anyone have any ideas just based on that?
 

tdream1

Go Kart Champion
Did the new PCV come with a new gasket? If not, you'll want to put that on from your old one or order a new gasket.
 

funkymcbain

Ready to race!
Hey, awesome thanks for the responses. It does come with a seal and it is an aftermarket unit but from a decent brand and supplier (basically a site in Canada that sells pretty much what ECS does). I'll go through my vac lines and everything, thank you!
 

funkymcbain

Ready to race!
What do you guys know about this thing
What's with the weird white inside of that? Mine is all broken inside, but I think it's been that way for a while. Is it supposed to be plugged? Why does it have that weird pattern in there?
 

zrickety

The Fixer
When you do the rear main, spend a few extra bucks for the billet piece from iAbed...the stock seal is a joke.
 

Tony48

Go Kart Newbie
Does the iABED one still require special tools?
All RMS require VW Seal Installation Guide Tool T20097 . You can finagle the seal on there but it's not worth risking a faulty install on a piece buried so deep in the car to save $15.
 

BudgetPhoenix

Go Kart Champion
I'm guessing something is not installed properly like the breather hoses, bad seal on the PCV or just a bad PCV out of the box which is causing a vacuum leak and misfire. I learned the hard way ONLY GET OEM PCVs the aftermarket ones will go bad eventually one way or the other.

I also did my rear main a year ago but opted to just use the new updated OEM rear main. The updated seal a couple years ago now sits inward vs outward so crankcase pressure seals it harder vs blowing it out. I read of too many people having issues with the iABED one and getting installed properly and DAP doesnt even sell it anymore for this reason. Although theres been plenty of happy customers with it too...
 

BudgetPhoenix

Go Kart Champion
What do you guys know about this thing
What's with the weird white inside of that? Mine is all broken inside, but I think it's been that way for a while. Is it supposed to be plugged? Why does it have that weird pattern in there?

This is a fresh air line for the updated flapper solenoid that comes with all the new updated intake manifolds past like 2017, it gets installed if you ever had your intake mani replaced at the dealer under warranty whenever they released the new manifold. The white foam part is like an air filter that prevents debris getting pulled into the intake manifold but I don't think this would cause your issues you are experiencing.
 

zrickety

The Fixer
Does the iABED one still require special tools?
Actually it does NOT require any special tools. I put a little wheel bearing grease on the inside of the seal, it's a solid piece. Goes right over the crank. It's not a flimsy little flap like the oem part.
 

torga

Drag Racing Champion
I also did my rear main a year ago but opted to just use the new updated OEM rear main. The updated seal a couple years ago now sits inward vs outward so crankcase pressure seals it harder vs blowing it out. I read of too many people having issues with the iABED one and getting installed properly and DAP doesnt even sell it anymore for this reason. Although theres been plenty of happy customers with it too...
I haven't read any links/threads of people having issues with the iAbed RMS - from what I've read it sounded like one of the only fool-proof mods you could do to this car. Do you happen to have any saved, or remember where to find them? I'd love to read the other side of the story. I've got one in my garage waiting to be installed once I buy a clutch.
 

Grabbit

Ready to race!
I read of too many people having issues with the iABED one and getting installed properly and DAP doesnt even sell it anymore for this reason.
Can you share where you read this? Who at DAP indicated this? I know the iABED one uses a viton type seal and these can be tricky to install if you aren't careful. They have an internal metal spring that can come out of the seal itself and cause leaks. I learned the hard way when I replaced the RMS on my 12v VR6 which uses a seal similar to the iABED unit.
 

BudgetPhoenix

Go Kart Champion

"We are sorry but we are no longer offering this product. This is due to issues around installation errors causing oil leaks after install. While we beleive this product is a solid choice but, installation mistakes are often claimed as a deffective part. This puts customers in a terrible situation where it is our word against the installer. We never want our customers to be in this highly frustrating situation which is why we have opted to no longer sell this."

Again im sure its a fine product I just saw too much conflicting info online about how to install it properly( even in this thread!) some people saying it slides on, some say needs tool, some say needs to be pressed on, or tapped on with mallet, I didn't want to worry about getting it just right and went with the updated OEM rear main seal when I did mine which does seem to be a bit of an improvement on the original product.
 

torga

Drag Racing Champion
Ok, that makes a lot of sense. Sounds like most, if not all failures are due to install error. I'll just have to be triple sure I'm following the instructions and maybe contact iAbed to be sure.
Thanks for finding that quote from DAP!
 

BudgetPhoenix

Go Kart Champion
Yeah i'm sure its a far superior seal to the OEM (even the updated) I just didn't trust myself with only limited time and money trying to get this job done in my garage last winter lol when I knew I could get the OEM right the first time for sure. I think they may even have changed the design of the seal sometime through production which may have led to a lot of the confusion on installation.
 

Tony48

Go Kart Newbie
Hopefully this helps someone. This is the response I received from iAbed when I reached out to them with some questions about install of their RMS. It was really simple. I'm not sure how it would get messed up other than not installing the seal into the flange before putting it over the crank. I have some more info if you follow this link to my build thread.

 
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