boost issues.

[Cupra-jb]

i seem to be having a slight boost issue

when i start the lcr and drive it for, around the first 45 mins-1 hour all is good i have a great whistling noise as the turbo spools up and great boost not to mention the great noise from my turbo smart dv.

but then after this time has passed it seems to not boost nearly as well and you cant hardley hear the turbo spooling and very little whoosh from the dv?

any help would be great guys.

cheers.jamie.

 

[swilky23]

I wonder if your tip could be going soft and going worse the warmer it gets

 

[Cupra-jb]

dnt know maybe mate although it is a forge one so i dont think it should?

anyone else any ideas?pleeeeeeease

 

[Ronin225]

I would check/replace lots of vacuum/boost hoses as it sound as though this maybe the problem, having said that you claim big big bhp for map stage
Outlet pipe or any hose expanding due to heat causing a slight leak??

 

[Captain Cupra]

What are you running in terms of Intake setup? Could be a heat soak problem if your using a poor air feed to a cone filter i always notice a more eager power sensation when the car is cold? I must be heat related is your temp ok! Fan Sensor? If you have a forge TIP i cant see it being the callapse problem! Maybe a boost leak somewhere worth checking all boost hose clamps are tight!

 

[Cupra-jb]

iv got the forge tip with a kwickshift induction cone (like a kn style).

the temp gauge goes up to 90 after about five minuetes is this normal?

any help would be great guys.

 

[J0N]

Is your Turbosmart DV a new addition? Is it atmospheric or recirculating?

 

[Cupra-jb]

no the turbosmart dv has been on for a while now its the adjustable one the kompact.

iv tried it fully closed up so its in recirc but no luck?

iv checked all the pipes and carnt see any leaks or splits?

the garage said when they pluged it in it was showing fuel pressure switch fault?????

 

[Cupra-jb]

just done another check of the pipes and found the one that runs from under the manifold to the fpr had split si iv replaced that but still no luck.?



any more ideas?

 

[adam cupra 20vt]

That might have been your fuel pressure fault?

 

[Cupra-jb]

yep proberley was mate but it hasnt sorted by boost issue out

i dont think it can be a leak as i said above some times it boost great then others it dont,if it was a leak wouldnt it just be weak all the time?

 

[Ronin225]

Now youve rectified a fault you can always try resettling to see if that helps
Disconnect -ve to battery for 15 mins or so
Remember radio code too

 

[Captain Cupra]

Often leaks are dependent on temperature when things shrink and expand! I see your running 281 hp what map is this who was it done by? Could be a problem with your map or a faulty MAF?

 

[Cupra-jb]

iv tried the battery off for 15 mins but no luck.

its a custom code remap was done before i bought it?

i know what you mean about the temperature and the leaks,but yesterday it was running great i drove it for around an hour with the full boost,but this morning it was back to been weak again?????

 

[Cupra-jb]

just a quick update on the boost problem,

i went over to friends house earlier which is about half hours drive away and the car drove great and boosted properley,

i stayed there for around 2 hors and when i came to drive home the boost had more or less gone again has it has been doing?

its very inntermitant and is realy starting to confuse me now iv replaced any split hoses and tightned all the clampe/clips up so i dont think theres a leak.

any more ideas guys pleeeeeeease.

cheers.

 

[LEE69]

Check out my thread i made earlier
http://www.seatcupra.net/forums/showthread.php?t=227650

 

[photomotive]

I've got a similar problem on a LC (not R and not remapped). Mine's a bit less time dependant though as the boost will just drop off completely at any stage in a journey. What happens with mine though is that if I stop the engine and re-start straight away the boost is back to full again no problem. That makes me think it's not temperature but is more likely electronics (sensors / ECU etc).

Does switching yours off and on again cure it or is it still lacking boost when it comes back on? If that is the case then it does sound temperature related doesn't it.

I've not tried disconnecting the battery on mine though, will do that tonight.

 

[Cupra-jb]

cheers lee69 where abouts would i find that valve?

also the turbosmart dv is on my car and im just wondering if thats fitted right(its got the pipe from the charge pipe going to the bottom and pushing the spring/piston up)is this right?


no mate stopping and turning the car off dont help at all,its just sometimes it boosts others it dont?

cheers.

 

[LEE69]

It's under the inlet manifold, can get to it by removing the two 10mm nuts and the two 5mm allen keys.

Yes that's right.

 

[Cupra-jb]

ok lee cheers ill go take a look now.