The correct way to do an N249 bypass the full guide

[mc funbot]

Can you get a picture on here so I can see my good sir an hopefully be able to sort this problem out for you.

 

[Longy82]

Hi there hope you can see anything as my pics arnt very good :/

http: //s28.photobucket.com/user/longy82/library/

Delete the spaces after http thanks Matt.

 

[Azza_]

I get the same code 16795 and I've done it the same as per the guide I normally get it if I drive off with the sai still running. Possibly the pump failing but I'll be ditching it soon anyway so I just reset it for now


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[Longy82]

Yeh that's what I do I bought a vw scanner to clear the codes I can hear my pump from start up just now and again goes into limp mode ( boost loss ) till I turn the car off then back on and it's fine for a while but I heard if I de cat it witch I will be doing when I sort the 17705 code out that u can take the pump off once de cat installed I believe :/

 

[mc funbot]

You can remove the pump/sai anyway its not a problem. Limp mode could be a leak. Look at the pipe that joins the inlet to the pcv pipe under the inlet mani. They are common for splitting that will be a boost leak or an incorect reading mate.

 

[Longy82]

I have already check that pipe and many others the car ticks over perfect and also runs perfect and even when it's in limp mode car doesn't miss a beat just boost loss till I turn it off then back on again its a strange one but it's booked in for a smoke test next week so hopefully that will pick something up fingers crossed.

 

[mc funbot]

right id put £5 on what it is.... that horrible split R dump valve.. **** it off an put a stock one on. if your close to northampton i have a spare..

 

[Longy82]

Unfortunately pal I'm in West Yorkshire and you no what a few others have mentioned that dv I'm told I should try a 007p with a yellow spring if that makes any sense at all?

 

[mc funbot]

or a stock dv mate..ive had no end of people at myn with faults an a lot have been these at fault mate..

 

[Longy82]

No prob mate thanks for all your advice really appreciate it will try another dv then and see what comes from the smoke test next week and will keep u updated what happens. Thanks again pal. Matt

 

[Longy82]

Were can I get a stock one from I carnt find one on eBay? :/

 

[mc funbot]

I have a stock one I think nearly new. Or forge 007 are a good valve.

 

[Longy82]

If you was closer pal I would come down and buy it off you so will just look out for a 007 off eBay and give a go. Fingers crossed sorts the problem out then can send you a fiver through the post lol

 

[mc funbot]

What a guy^^ glad I could help pal.

 

[Longy82]

Forgot to ask mate when you looked at my pics can you see if its already had that bypass think and has it been done right or does it have to tee into the fuel regulator like I seen on another post?

 

[mc funbot]

i couldnt really see mate sorry take some better pics and ill have look if you like.. T in to the FPR is not my way of doing it.

 

[leegreenaway]

I've done the N249 bypass but the other way, with the T piece between the DV, Inlet & FPR.
Wish I'd found this first lol

Like the idea of cleaning up the useless pipes just want to check what needs to be done with the FPR. (unless ive missed something)

This is the guide that was followed originally on my AUQ http://www.seatcupra.net/forums/showthread.php?t=349627

 

[Longy82]

That's the one I seen mate and thought the way mine was done might be wrong and corse my 17705/16795 codes until I spoke to this guy and it's been done right not that way using the fpr.

 

[leegreenaway]

Where does the FPR connect to then? Don't you have to unplug it to plug the DV into the inlet?

 

[Longy82]

Sorry mate are you trying to reverse yours and do it the way mine is without using the fpr?