1.8 20v turbo dying with low revs please help

[kassim]

Hi my brother has bought a cupra and is having major problem with it . The cars a 1.8 20v turbo .

Wen the car is idle the revs keep dropping and the car comes close to stalling but revs go back up .

I have also got a massive oil leak

Please can someone help out asap to what this problem is with the revscheers

 

[traumapat]

search on here for

dirty throttle body,
coolant temp sender,
maf

all of those give the above symptoms and are common.

does the idle ok once warmed up fully?

 

[BearAttack]

Also check for vaccuum/boost leaks, does it hiss loudly under boost? (As in can you hear a significant hiss when under load with the windows shut?)

 

[bigfella2901]

If you have fitted a dump valve to it which is not a recirculation one it does it as it did it for me when I owned it.