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Pulsating turbo (w reg impreza turbo 2000 uk)

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Old Mar 20, 2016 | 04:48 AM
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Default Pulsating turbo (w reg impreza turbo 2000 uk)

When I accelerate slowly it hardly does it but when I floor it the turbo pulsates.the boost gauge hits about 1.2 then drops to 0.5 then back again .any input would be great.
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Old Mar 20, 2016 | 05:20 AM
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1.2 bar isnt standard boost, so is it mapped or modded and not mapped for mods ?
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Old Mar 20, 2016 | 09:12 AM
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Ecu pulling boost back, as above has it been moddified but not mapped for any mods?
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Old Mar 23, 2016 | 03:51 PM
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Originally Posted by JDM_Stig
1.2 bar isnt standard boost, so is it mapped or modded and not mapped for mods ?
Yeah its been mapped running just shy of 280bhp.....only mods are exhaust
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Old Mar 23, 2016 | 03:53 PM
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Originally Posted by **jay**
Ecu pulling boost back, as above has it been moddified but not mapped for any mods?
Only got a upgraded exhaust system as far as can tell oh and a dv and it's been mapped just shy of 280bhp
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Old Mar 23, 2016 | 03:56 PM
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Cleaned out the boost selenoid and pipes coming from it right back past the t junction.wasn't 100% sure if I could tell a difference,it certainly ly isn't fixed though
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Old Mar 23, 2016 | 07:22 PM
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Could be the dump valve leaking or opening on boost id bin it and fit the proper subaru valve.
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Old Mar 23, 2016 | 07:53 PM
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Originally Posted by **jay**
Could be the dump valve leaking or opening on boost id bin it and fit the proper subaru valve.
I believe dump valve was fitted 3 year ago is this likely to b a factor how long do they last
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