Cupra Tdi Potential Turbo Problem

[davyrob]

I have an Ibiza Cupra TDi with the following spec:

custom code phase 1 remap
Full miltek system, green cotton panel filter, sachs clutch.

This morning while driving to work I experienced loosing the turbo. Basically I was driving the car up a hill ( was giving it some welly) when I went to change from 5th to 6th I noticed a big power loss. I limped with it for a bit, then pulled over to have a look under the bonnet incase a hose had come off etc.
Nothing untowards was obvious, upon re starting the car and driving off the turbo seemed to be working again ( I did however feel it wasn't running as well, but that could be physchological)
Driving it home was also fine & I could not repeat the symptoms.

Does anyone know whether the turbo system has some protection, i.e overboost & this is what I encountered, or is the turbo itself showing signs of wear/failure.

I have read on the forums that in it's current state of tune it is close to the standard turbo's limit, but I don't want to change it to a hybrid unit unless I have to.

Any feedback would be welcome, especially off people who have experienced similar issues.

cheers

 

[aaronbromley]

It's not 100% to be the turbo.

Could be a faulty MAF sensor.
Perhaps a boost leak somewhere.

Would be best to get hold of someone with VAG com and have the car read for fault codes.

 

[davyrob]

cheers for that.

Had a look on the forum last night aswell, a couple of people had threads about similar problems. Most common cause was either a sticky EGR valve, or sticky guide vanes on the turbo. Recommendation was to give the car a good hard drive to clear any sooty deposits.
Well been for a good hard drive with it today & it seems o.k (touch wood)