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h100vw
Guest
Are you remapped running extra boost? This will compound your problem until you find the problem.
I had this same snag a couple of weeks ago. Can we assume that you have binned the std DV? If you have then you will have to go through each and every connection between the turbo and throttle body to ensure their integrity.
I took off each pipe cleaned and refitted them over a couple of days. I thought I had found it on the input to the rigid pipe on the chassis leg on the drivers side. There was evidence of oil running down the outside of this pipe. I took the pipe out completely and cleaned it well. Hoping that if the leak came back I'd see it easier the next time.
I also had the pipes to the I/C off as well. Making sure that the clips were done up well.
Most of the std clips I got a couple of turns on using one of those flexihose clips screwdriver things.
If that doesn't banish the problem, then have a look at all the vac pipes under inlet manifold. Move them with a screwdriver with the engine running and listen for hissing noises. It might even be worth replacing all the vac lines if you have the time. I would have done this but sold the car before I needed to.
Mine was CC phase 1, doing over a bar of boost. I could turn my boost down with CCs custom settings utility. Dropping to 75% boost stopped it happening without too much affect on performance. I jacked this back up when I sold it.
The last pipe I checked was the one covered with the heat cloth at the back of the head. I am sure this was the problem one. I replaced the clip but never got to drive the car.
Have you the facility to datalog it?
Gavin
I had this same snag a couple of weeks ago. Can we assume that you have binned the std DV? If you have then you will have to go through each and every connection between the turbo and throttle body to ensure their integrity.
I took off each pipe cleaned and refitted them over a couple of days. I thought I had found it on the input to the rigid pipe on the chassis leg on the drivers side. There was evidence of oil running down the outside of this pipe. I took the pipe out completely and cleaned it well. Hoping that if the leak came back I'd see it easier the next time.
I also had the pipes to the I/C off as well. Making sure that the clips were done up well.
Most of the std clips I got a couple of turns on using one of those flexihose clips screwdriver things.
If that doesn't banish the problem, then have a look at all the vac pipes under inlet manifold. Move them with a screwdriver with the engine running and listen for hissing noises. It might even be worth replacing all the vac lines if you have the time. I would have done this but sold the car before I needed to.
Mine was CC phase 1, doing over a bar of boost. I could turn my boost down with CCs custom settings utility. Dropping to 75% boost stopped it happening without too much affect on performance. I jacked this back up when I sold it.
The last pipe I checked was the one covered with the heat cloth at the back of the head. I am sure this was the problem one. I replaced the clip but never got to drive the car.
Have you the facility to datalog it?
Gavin
turbo freak
Guest
Thanks for the reply! I have a friend with a VAG-COM that owns a very modified Octavia RS with exactly the same engine as mine and I will go to him next week and see if we can solve this. I'll try to check all the hoses, but today I got a closer look at them and there seems to be some oil on the hose just beneath the pop-off. The hose goes into another plastic part about the size of the pop-off, but I don't know what it is
I'll get back with the results of what I try. Hope it works!
I'll get back with the results of what I try. Hope it works!turbo freak
Guest
So: I'm loosing my mind!!! I changes the MAF, I changed the N75, cleaned the throttle body and the result was that the car run great for a couple of hours. The fault is definettly back again! What could it be? I haven't had the time for a proper hose-check, but there is nothing obvious, and I cannot hear any "leak-like" sound. Could there be anything exept for the hoses?
![[:@]](/forums/styles/seatcupra/oldforumsmileys/furious.gif "Furious [:@]")
h100vw
Guest
Can you clear the fault briefly by turning the ign off and back on? Does it run normally then?
Only thing it can be is a bona fide air leak. You just need to follow all the pipes from the turbo round to the TB and tighten each one up in turn. If that still doesn't sort it. A laod of vac hose and new clips. change every pipe you can find.
I was losing it with mine but got it in the end.
Only thing it can be is a bona fide air leak. You just need to follow all the pipes from the turbo round to the TB and tighten each one up in turn. If that still doesn't sort it. A laod of vac hose and new clips. change every pipe you can find.
I was losing it with mine but got it in the end.
h100vw said:
if its an air leak why would it run ok for a few hours? does it build up before the ecu declares the fault?
h100vw
Guest
I just had this theory about my Cupra. It would go into limp easily first thing in the morning when it had been stood overnight.
This is with the CC code in it, so plenty of boost. If I reduced the boost to 70-75% of full chipped boost, which would be just over std. It didn't cause the fault.
My theory is that once everything is up to full operating temp, all the pipes expand so there are no leaks. First thing there is just enough of a leak to allow boost to pass causing the message and limp.
Gavin
This is with the CC code in it, so plenty of boost. If I reduced the boost to 70-75% of full chipped boost, which would be just over std. It didn't cause the fault.
My theory is that once everything is up to full operating temp, all the pipes expand so there are no leaks. First thing there is just enough of a leak to allow boost to pass causing the message and limp.
Gavin
i now you cleaned the throttle body but did you resett it to basic settings. seat technical recomend cleaning the throttle body and resetting to basic settings before doing anything else with this fault
turbo freak
Guest
I had the throttle body cleaned at the dealership but I am almost sure the idiot did NOT reset it, he just cleared the faults. The thing is that my car runs O.K. when not in limp mode, but not as it should, I probably get a bit more boost than stock I also noticed today that I can hear my pop off almost as if it were an atmospheric D.V., not as loud, but I can hear it pretty clear sometimes. Is this normal or does it suggest a leak?
I also noticed today that I can hear my pop off almost as if it were an atmospheric D.V., not as loud, but I can hear it pretty clear sometimes. Is this normal or does it suggest a leak?Seems quite a common issue....
Read here: http://www.seatcupra.net/forums/showthread.php?t=78653
Post #14 is how mine was fixed. Never had an issue since
Read here: http://www.seatcupra.net/forums/showthread.php?t=78653
Post #14 is how mine was fixed. Never had an issue since
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