Lack of boost
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Discussion

The devil

Original Poster:

2,152 posts

212 months

Wednesday 3rd August 2011
quotequote all
Seem to have lost some boost, it only gets to about 0.3 bar andf I have the upgraded 0.7 bar actuators.
Split pipe? actuator? turbo?
It runs fine just got a lack of acceleration

R0162

2,435 posts

193 months

Thursday 4th August 2011
quotequote all
boost leak. Maybe a wastegate is not closing properly?

hollowpockets

5,910 posts

245 months

Thursday 4th August 2011
quotequote all
Check the vacuum hoses are connected to actuators and boost controller, the plug to the boost controller is in and the 90degree piece from the inlet manifold isnt pushed on too far, also check boost hose jubilees are tight and connected then after that start questioning mechanical possibilities like sticky wastegates and throttle position/cable hasn't slipped.

The devil

Original Poster:

2,152 posts

212 months

Thursday 4th August 2011
quotequote all
Found the problem, the actuator arm had come off the front turbo,

Spindoctor

856 posts

229 months

Thursday 4th August 2011
quotequote all
Glad you found the problem. Was your boost gauge needle fluttering rather than holding steady under boost? That's the symptom I had (other than lack of boost!).

The devil

Original Poster:

2,152 posts

212 months

Thursday 4th August 2011
quotequote all
Not really, it would get to 0-3 bar
hopefully a new circlip at the weekend should get it alright again

Blu3R

2,380 posts

228 months

Thursday 4th August 2011
quotequote all
I was going to say that it won't be a split vac hose as you'd get actuator pressure without vac hoses attached to either actuator.