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turbo stalling

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Old 01-03-2008, 12:34 PM
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jonesymk2
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Default turbo stalling

i converted my erst to efi quite a while ago snd its been really reliable once it was setup,i was out in the car earlier and was having a couple of problems under acceleration,to start off with i thought it was were i had gone over a bump and my foot had lifted the throttle a bit and caused the turbo to chirp as though i was changing gear

i got onto a piece of dual carriage way near me on my way home and started accelerating and it did it again but i thought it was from going over a bump again,so i pushed my foot down hard in 5th and it started doing it again but this time my foot hadnt moved,does anybody know what might be causing thisatall please
Old 01-03-2008, 12:41 PM
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it's just chatter


dont worry about it
Old 01-03-2008, 12:44 PM
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Chris69
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Originally Posted by Spiky
it's just chatter


dont worry about it
chatter occurs when you lift off not accelerate
Old 01-03-2008, 12:45 PM
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Originally Posted by jonesymk2
i gone over a bump and my foot had lifted the throttle a bit and caused the turbo to chirp as though i was changing gear

thats lifting off
Old 01-03-2008, 12:46 PM
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also on acceleraing, it may be hitting a boost limtier or missing cause the ame thig
Old 01-03-2008, 12:53 PM
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Chris69
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Originally Posted by jonesymk2
so i pushed my foot down hard in 5th and it started doing it again but this time my foot hadnt moved,does anybody know what might be causing thisatall please
thats not lifting off
just thought i'd state the obvious seeing as you did
Old 01-03-2008, 12:53 PM
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it wasnt even on full boost though thats the trouble it was just builing up to full boost,ive got a superchips 195 chip in the ecu aswell and its only running 11psi,it seems ok when i dont put my foot right down or if its not under a lot of load (going uphill or against a strong head wind)
Old 01-03-2008, 03:27 PM
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anybody else any other ideas atall please
Old 01-03-2008, 04:08 PM
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i would like to know this as mine is the same
Old 01-03-2008, 05:01 PM
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Ollie MK5 Turbo
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Thats Compressor Surge if you have the throttle open full and its doing it.
Old 01-03-2008, 08:14 PM
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Yup, thats surge, where the turbo flows more air that the engines inlet can take, and its forced back out.
Old 02-03-2008, 09:04 AM
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oh right ok cheers,what can be done to eliminate this or is it not possible without getting a smaller turbo,could a worn cam cause this atall
Old 02-03-2008, 09:06 AM
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it seems fine when i use half throttle and it still boosts up to full boost and seems just as quick,it only seems to do it in 5th gear,i did think about it being surge but wasnt entirely sure
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