Leon turbo not boosting

Lindsay3020

Active Member
Oct 4, 2015
4
0
I have a Leon 1.8 20v, have only got it a few weeks. The turbo has started to go into limp mode, it boosts and i'am getting 15 psi boost then driving along and get it some again and it only boosts to just under 5 psi and the turbo isnt kicking in. But I turn the engine off and back on and the turbo starts boosting again. I have went to seat and was told it is carbon build up on the turbo and the guy told me to use a bottle of oxicat but it is still going the same.
 

ibizacupra

Jack-RIP my little Friend
Jul 25, 2001
31,333
19
glos.uk
carbon build up on the petrol turbo?
hmmmm.. think he's thinking derv

get your fault code read. the clue will be there
 

Lindsay3020

Active Member
Oct 4, 2015
4
0
Yea the guy I bought it from said it had been remapped, going to get a lead of fault code reader 2night and see what it says.
 

Lindsay3020

Active Member
Oct 4, 2015
4
0
Put it on the fault code reader and the only one on it was p0170, I didn't drive the with it plugged in just tried it when I was parked.
 

mty12345

Active Member
Jun 17, 2011
3,728
451
bristol
p0170? i can't find that listed......or is it p0171? which is a common code on these engines
 
Last edited:

mty12345

Active Member
Jun 17, 2011
3,728
451
bristol
Yeah sorry I found it on Google but it's not listed by ross-tech for some reason. As traumapat says I'd say that it's a vacuum leak too. Check pcv hoses under the inlet manifold
 
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