PCV System Mods + Oil Catch Can

[D@nCeR]

Alright,

So Ive been lingering round these forums for donkeys and have never had to post for help as 99% of the time I can find what I need..

Until now..

So after reading through loads of threads and posts on PCV Modifications and Oil Catch Fitting.. I decided i'd set about and fix my small boost leaks, fit a catch can and simplify the PCV system...

Car Specs:

Golf GTi (AUQ) 180 - Remapped to 250BHP / 265lb/ft

Few pics to start.





When I removed the Hockey Puck oil dribbled out..



Stripped a bit more down...










And the finished product:





The issue im having now.. from cold.. car starts normally, vaccuum pump kicks in.. minute or so later goes off... drive away fine.. boosts up to 20PSI through the gears.. If i do a WOT Pull in any gear.. then let it slow down with no throttle it chucks itself into Limp mode.. no lights on the dash.. no errors on the ECU.. if I flick the Ignition off and back on.. Ive got full boost again..

Lets see if i can make sense of which way ive simplified the PCV..

From Crank Breather ---- into T-Piece ---- Into Catch Can + Rocker Cover.

From Hockey Puck --- into Catch Can

Ive removed the Suction Jet Pump and the pipework that goes along with it.. Capped Off Port on Inlet Manifold..

Ive removed the V Shaped Split from the Brake Booster Line (also part of Suction Jet Pump Pipework) --- and Replaced with small bit of pipe..

Ive also removed the small section of metal and rubber pipework from TIP Pipe to Inlet Manifold with one way check valve in.. Ive simply ran 1 hose from TIP into Manifold with the Check Valve Into The TIP (This can be seen on this pic just!)



Im at a loss of what to try next..

Any wisdom or help anyone can shed on the matter would be awesome!

Cheers in Advance

Chris

[Wazzzer]

N249 bypass done?

[D@nCeR]

N249 bypass done?

No, I'd read you didnt need to bypass it unless you were removing the whole Vacuum System..

[Dalo Harkin]

id do away with the vac box too near plug 4, from what I remember when I did mine I chopped the hard lines out and blocked the one that comes from the very bottom of the tip (comes out somewhere near the DV)
also block the one in the middle of the inlet mani.

[Felton]

I was told by the guy who did my n249 delete who knows his 1.8t engines that when you do a catch can you remove that hockey puck all together buddy ?

[golfyste]

You don't remove the puck valve as stated, leave it be
Do the n249 bypass and get rid off all the junk which is basically getting rid of any potential trouble causers

Also ditch the split-r valve as they are crap and can cause problems and it is also in the wrong way 

[D@nCeR]

You don't remove the puck valve as stated, leave it be
Do the n249 bypass and get rid off all the junk which is basically getting rid of any potential trouble causers

Also ditch the split-r valve as they are crap and can cause problems and it is also in the wrong way 

Never had issues with it... It's also in the wrong way??? What do you mean? It's installed how forge state it should be lol...

I didn't have any issues with the car at all before fitting oil catch tank..  So it has to be something I've done or changed which it doesn't like.

[golfyste]

The boost coming from the charge pipe should hit the side of the piston in the valve.
It may be my eyes but it definatly looks like te boost is goin in from the bottom.

You want to do the rest of the deletes n249 ,n112 etc and pull out the hardlines as just doing half can confuse things.
Get rid of it all and it's much more simple and should be ok.

It may be that the car seems fine with the split-r but test have proven a pure recirc valve is better and it's just a potential problem 

[dom]

The boost coming from the charge pipe should hit the side of the piston in the valve.
It may be my eyes but it definatly looks like te boost is goin in from the bottom.

You want to do the rest of the deletes n249 ,n112 etc and pull out the hardlines as just doing half can confuse things.
Get rid of it all and it's much more simple and should be ok.

It may be that the car seems fine with the split-r but test have proven a pure recirc valve is better and it's just a potential problem 

Nail on head

[rio_gti]

250 bhp with no fmic?? 

As said get rid of literally everything and be left with a vacuum to the dv and the fpr no need for the reservoir   

Also what noise are you getting when the valve dumps? Is it a flutter or a wosssssh as it (the dv) might not be set up properly