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Speedo needle jumping on boost

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Old 21 May 2012, 08:25 PM
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bonesetter
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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 21 May 2012, 09:35 PM
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madmarx
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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; 21 May 2012 at 09:36 PM.
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Old 21 May 2012, 10:07 PM
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RICHARD J
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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 22 May 2012, 07:13 AM
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Yikes
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