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Old 31 Jul 2010, 07:27 PM   #1 (permalink)
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waste gate

Hello all in Impreza land,i'm having trouble with my 2.0 turbo totally standard,the power seams to judder when accelerating but i'll change the HT leads and plugs,but should i be able to see the waste gate open and close and if so what sort of revs,hope you can help mooseman101
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Old 31 Jul 2010, 09:45 PM   #2 (permalink)
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Re: waste gate

You wont see the wastegate move with the bonnet open as the car doesnt boost unless in gear and moving. Try cleaning the idle control valve and the maf
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Old 31 Jul 2010, 09:54 PM   #3 (permalink)
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Re: waste gate

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Originally Posted by mooseman101 View Post
Hello all in Impreza land,i'm having trouble with my 2.0 turbo totally standard,the power seams to judder when accelerating but i'll change the HT leads and plugs,but should i be able to see the waste gate open and close and if so what sort of revs,hope you can help mooseman101
OK but what is the maf where is it and what does it do?
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Old 31 Jul 2010, 11:18 PM   #4 (permalink)
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Re: waste gate

Mass air flow sensor (air flow meter) lots of guides posted here which detail how to clean both.
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Old 01 Aug 2010, 10:02 AM   #5 (permalink)
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Re: waste gate

Check the coil packs, clean the boost solenoid also - how to cleanfactory boost solenoid (controler!) What year Impreza is it, does it judder through all gears and when was the clutch last changed?
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