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Lost boost on 06 spec C

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Old 15 May 2007, 11:10 PM
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ek9/sti
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Default Lost boost on 06 spec C

only boosting to 0.7 bar max..

I am new to these scooby engine, can someone show which boost pipes I should check that can cause this?? (Pics if possible )

Car has been fitted with 4 Defi gagues from Japan. Other things remain standard.
Old 15 May 2007, 11:36 PM
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Don't mean to state the obvious, but them Defi's act as a controller as well. So check you haven't got the boost limit set on the gauge.
Old 16 May 2007, 08:01 AM
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Originally Posted by joey_turbo
Don't mean to state the obvious, but them Defi's act as a controller as well. So check you haven't got the boost limit set on the gauge.

I thought they only have a warning function didnt know they can set limit as well. I will definately have a look, but chances are slim

Thanks ...
Old 16 May 2007, 12:56 PM
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Originally Posted by joey_turbo
Don't mean to state the obvious, but them Defi's act as a controller as well. So check you haven't got the boost limit set on the gauge.
News to me.
Old 16 May 2007, 12:59 PM
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Originally Posted by joey_turbo
Don't mean to state the obvious, but them Defi's act as a controller as well. So check you haven't got the boost limit set on the gauge.
No they don't, the controller is only for the funtionality of the gauges (peak readings, warning setings, recording and playback etc.), they have no control over anything to do with the engine management.
Old 16 May 2007, 01:07 PM
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Oh Ok then, my bad.
A mate has got them in his v5 STI. The day he got it, his first jap car, he set the boost via the Defi gauge, and when driving, it didn't go past this. I could see a small DEFI block near the boost solenoid under the bonnet, so assumed it was for that.
Old 16 May 2007, 06:41 PM
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Is there any adjustment you can make on the actuator??
Old 17 May 2007, 09:40 PM
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Can some scooby Guru shine some light please?
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