induction kit causing boost problems.

[sambryant]

thanks shaunyboy. will do that after work 2 mos

 

[Shaunyboy]

No probs mate, just be carefull and take ya time, if you drop it or hit it on anything chances are its buggerd

 

[JamJay]

It might be worth getting the 80mm housing as you can then have a go at descreening the MAF housing on the old one.

http://www.seatcupra.net/forums/showthread.php?t=236085&highlight=descreening

 

[sambryant]

rite now my maf has its new element, all i need is my new induction kit to turn up. wanted to sort it 2nite

 

[sambryant]

good news so far. got my new maf sensor and induction kit in. all seems to be ok. however when i took it for a drive, i put my foot down and the turbo worked once before cutting out(limp mode). i switch the car off, then back on. took it back down the road with my foot to the floor. i watched my boost gauge at i was boosting at 1.2 bar.(over boosting)
any way i turned up the settings on the dumpvalve to reduce boost pressure. now its boosting at 0.8 bar and its been fine ever since. so hopefully problem solved. by the way i think i didnt need a new maf sensor but now i have a spare

 

[Cupra-jb]

i think mine could be heat related too,as it seems ok when the engines cooler i.e first 20-30 mins,

also last night i was out and about for about 2hrs in the cold damp air and it was raining and it was fine throughout the journey

this seems to be the case its always good in the cold and rain.

but when its normal weather its ok at first then goes into limp mode and the whole engine bay is red hot and the dv is untouchable like you said.

so do you guys think i need the standard air box back on?

please heeeeeeeelp

 

[sambryant]

yes try your standard airbox to begin with. also what dv do you have?

 

[Cupra-jb]

ill have to get one first from someware as it didnt come with the car,

iv got the turbosmart duelport dv on it do you think this could be an issue?

 

[sambryant]

hold fire b4 getting a new air box. i have just looked at you dv, its an adjustible 1. try turning it clockwise 5 clicks, if this has fixed your problem then it was an overboosting problem you had.
if you turn your dv clockwise this will reduce boost pressure.(less likely to overboost)
if you turn anti clockwise this will allow more boost pressure.(this will lead to over boost and limp mode)
finding the right balance can be tricky on a moded car, i spent alot of 2day setting my dv up, as i did have the same problem as you. now my car is running fantastic.
i am nearly 100% certain you car is over boosting.
let me give you an example of my dump valve. i have a forge split r.
here were the basic settings,
turn fully anti cloackwise. then turn clockwise 8 clicks. this worked very well with the standard airbox. how ever when i put my induction kit on i over boosted and went into limp mode.
now i have set it up. fully anti clockwise, then 21 clicks clockwise, now the car is perfect with the induction kit on.
hope this help you

 

[Cupra-jb]

ok thanks mate ill try that tommorow,so wind it in around 5 cliks so im compressing the spring in?

is that right?

glad yours is sorted now mate its a right pain in the ass

 

[sambryant]

yep thats right, more compressed spring will reduce boost pressure. by the way 5 clicks was a guess, you may need 10 but its trial and error. just remember how many clicks are your basic settings.

 

[drance]

im having the same problem only thing is i dont have an induction kit on mine the only thing i have is a dumpvalve not sure what it is i know its a forge but thats all could this be the wrong kind and could that cause me to go into limp

 

[Cupra-jb]

so if i close it up fully it should work as a fully recirculating valve?

ill give it ago tommorow and report back to this post.

DRANCE if yours is the forge that you can adjust on the top then yep it could need setting up properley mate,and there a bitch to get right.

thanks.

 

[drance]

ahh ok i will give it a go i had a quick look earlier and i couldnt see ant way of adjusting it could this b a purly atmospheric dv rather than a recirculating or split dv

thanks

david

 

[Cupra-jb]

yep could be mate proberley the forge 007p,if its adjustable its the forge split r but you would be able to tell as the top of the split r is where you can turn/adjust it.

 

[sambryant]

quote!!! ahh ok i will give it a go i had a quick look earlier and i couldnt see ant way of adjusting it could this b a purly atmospheric dv rather than a recirculating or split dv

drance your problem could be that you dont have the right dumpvalve. the leons dont support fully atmospheric dump valves unless they are mapped to suit.
if i was you id find out what dump valve you have and if its not the right one id get the correct one asap.

 

[sambryant]

cupra j-b (so if i close it up fully it should work as a fully recirculating valve?) by compressing the spring wont cause your dv to be fully recirculating. you need to blank off the trumpet to do that. but even still you dont need to do this. the only thing you need to do is set the spring up correctly.

 

[Cupra-jb]

iv just been out with the valve fully closed and it was ok for around 20mins then back into limp mode

iv got a blanking plate for the valve but i carnt see how it goes on to it iv lokked before but didnt have a clue.

when i got the car it had a forge split-r on it,and when i got the turbosmart onit it worked ok,but then started playing up.

so i guess the best way is to start with it fully closed then work it up untill its right?

 

[LEE69]

so i guess the best way is to start with it fully closed then work it up untill its right?

Yes.

 

[Cupra-jb]

ok thanks for the reply lee69,do you think this could be my problem?

also do you think i should put the blanking plate in and see if this sorts it?

thanks for the help