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Speedo needle jumping on boost

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Old May 21, 2012 | 08:25 PM
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Default Speedo needle jumping on boost

Occasionaly, and only on boost

Bug eye STi wagon (import), unsure of kmh conversion set-up, std ecu. Just started happening after a years ownership... any ideas?

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Old May 21, 2012 | 09:35 PM
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I dont know what the speedo set up is on your drive, but turbo cars with worn gearbox / final drive bearings can make the speedo drive judder on boost.

Last edited by madmarx; May 21, 2012 at 09:36 PM.
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Old May 21, 2012 | 10:07 PM
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As above, possible F diff bearings, but I'd look closely at the speedo drive before Condeming the box
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Old May 22, 2012 | 07:13 AM
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Yikes
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