The correct way to do an N249 bypass the full guide

[rcky89]

Probably relating to incorrect flow to the SAI

You can either live with it or T it into the DV line. All it needs is a vacumm.

The pipe u T into the dv line. Is that the one that gets blocked by the little bolt?

 

[arb79]

hello mate im about tonight maybe friday evening

As for a polo mate id like to have a look and see what can be done I like a challenge

Hi mate I've had to go away now for queen and country so I'll give you a shout if and when I get back

 

[Sam_chadders]

Ok mate could you drop me a text on 07427656627 and can arrange a day

 

[leegreenaway]

The pipe u T into the dv line. Is that the one that gets blocked by the little bolt?

Sorry for the late reply, yes the one that gets blocked you T into the DV line! You could T it into the FPR line instead I suppose.

I replaced that braided how with some vac hose to make it easier.

 

[mc funbot]

Well I did a bypass on a polo gti sunday. What a treat not to hard. N249 and sai all done and running lovely.

 

[mwflynn06]

Followed this guide 2 days ago. Everything's been superb. This morning on way to work an EML has appeared what could it be ? Going to reset it tonight and see if it appears again. I did notice that on start up that it makes a weird noise like its hesitating to start ??

 

[mc funbot]

Thats a strange one. Sure you blocked of everything and nowt is leaking there. Could be sai relaited buddy.

 

[useyourname]

I'm going to do the bypass on my AUQ tomorrow. I'll try to get pictures aswell.

In picture 13, it says:

"remove all pipe of the resistors"

I'm assuming this means once you remove the pipes only the resistors remain on the pieces you removed them from. So I don't need to purchase any resistors?

I'll also be using the T piece to include the SAI? braided hose to prevent the fault code.

Thanks.

 

[mc funbot]

yeah thats the 1 mate. T in to sai stops that being at fault. yes remove all the vac off the n249 plugs and the put it back on. that way the n249 works as a resister and can do its thing. any probs just ask.

 

[useyourname]

I didn't get a chance last weekend it was pissing it down non stop. Might have a go on Saturday if weather holds off. Cheers.

 

[turbomick]

hey guys and gals after having a slight debate over the way to do an n249 bypass
this is how i would do it,i like to know your views on it.i see alot of people only doing half a job.a random guy with a 1.8t leon agreed to let me do this.it had a cat back exhaust an a air filter.this took me 25 mins to do.that was with taking photos and telling the lad what i was doing..

lets get started this is simple and a great mod ive done it to all my 1.8t cars from standard mk4 golfs to my mk3 ibiza at 340bhp

tools needed

this is what you will start with

this is what you will have removed

your work is good now reward your self with a beer and a pat on the back!

this is all the rubbish that you should have removed..

i hope this helps you guys an ive never had any problems just improve ments not engin lights on..

Hi mate so to do the n211 and n249 by pass but keep the sai pump I just go from inlet to dv then t in to dv to the pipe you blocked. Leave every thing pluged in and no faults should pop on vag com

 

[mc funbot]

thats it mate yes

 

[turbomick]

Cheers mate ive been getting the code on vagcom for pressure drop between turbo and throttle body so gonna try this as it says it could be faulty n249

 

[Cupra260391]

are you suppose to do anything with the fpr pipe ? as on another guide they t the vac line from dv to mani into the fpr ?

 

[mc funbot]

thats the reason this guide was made. each thing has its own line not loads of crap T in to other lines

 

[EggHead19]

Finally got round to doing this properly brilliant guide and just seems neater chears soon to do the sai and charcoal canister


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[kiemcd]

Followed this guide on my Cupra 20vt 180 AUQ car boosts stronger and sounds great!
Been done for approx 1-2 weeks now and had the dreaded eml appear but not bothered.. Going to sack off the whole sai system next.

Sorry to bump old thread btw

 

[mc funbot]

Hey no worries glad it's all ok for you buddy.

 

[kiemcd]

Did you get round to doing a guide for the sai ? Cheers


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[mc funbot]

I don't have time I keep meaning to do it..