n249 bypass

[Cupra Ross]

6mm is fine, your T pieces should be 2mm bigger than the Internal diameter of the vac hose. Stops it from popping off.

 

[CUPRACAR]

I will take pic's tomorrow and let you know the spec of the resistors i think they need to be 10hm but i will confirm tomorrow.

Can anyone confirm the resistor value and which pins to bridge?

 

[adam cupra 20vt]

I didn't realise you needed resistors or is it like the SAI unit where some use resistors and some dont?

Would it be best to do the mod and leave it connected if it throws up the EML light? possibly mount it under the scuttle panel so the ECU thinks its still working......or can it just be disconnected and removed with no problems?

 

[CUPRACAR]

I’ve done the by pass and removed everything except the valve its self, that’s still electrically connected.

I’ve had no fault codes but I want to remove the valve, by fitting resistors at the plug this should kid the ECU in to thinking the valve is still there.

 

[adam cupra 20vt]

Yeah I know that you do the same thing when you remove the SAI pump......but then I read lots of people didn't actually bother to put a resistor in the plug and have had no trouble so I'm wondering if you actually need to use the resistor

 

[craig lcr]

hi ive done the bypass on my LCR by just connecting the pipes coming of the n249 and the dv but ive seen pics of ones that have used the hose coming off the FPR.can i do mine that way or doesent it make any difference.

 

[paullcr]

hi i did mine today defo good mod it just seems to pull stronger even though mine is completly standard.

 

[adam cupra 20vt]

Can anyone comfirm weather you need the resistor or not?

 

[paul-murphys]

hi i did mine today defo good mod it just seems to pull stronger even though mine is completly standard.

which way you do yours mate?

 

[paullcr]

same as the photo of the dump valve straight in to the pipe off the T left the rest conected and the electronic plug. the dv enven sound slightly different

 

[paul-murphys]

which picture mate? what post ? thanks

 

[paullcr]

go to the firts page on this post

 

[paul-murphys]

so its one piece of tube, read somewhere needed to go off fpr an get hose from fpr to dump valve. is yours ok now got this done? cheers

 

[mark smith]

yeh i noticed a difference straight away, although to be fair, my car was having problems then i done this while it was being fixed. dunno about you, but changing gear at speed seems crisper and smoother, and the throttle is slightly more eager.......alot of people say they can hear their DV more, mine is defo more audible when im caning it to death. dunno if its due to this.....as i have said good little mod....

while you are doin it, debaffle your charge pipe too.....my car sounds like a whisleing kettle on full chat....lol

debaffle the charge pipe ? have you got any pics of that ?

 

[w8scc]

2005 CupraR

Has anyone done this on a LeonCupra R 225 2005 model.. not sure on engine code without looking tomorrow..

If anyone has.. have they got pics?

Cheers guys.,

 

[LEE69]

Has anyone done this on a LeonCupra R 225 2005 model.. not sure on engine code without looking tomorrow..

If anyone has.. have they got pics?

Cheers guys.,

Are you serious?
Have you bothered to read the thread?

 

[lc_allan]

 

[mark smith]

def noticed throttle is more eager, and the dv sounds up more in the air box, nice and easy mod. cheers

 

[adam cupra 20vt]

Can anyone comfirm weather you need the resistor or not?

Anyone?

 

[LEE69]

If you leave it connected you don't need the resistor.