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Automatic Speedo wrong
Posted: Tue Jul 03, 2018 11:34 am
by c_doughty1
Ok so driving in a 4th gen auto 2.2 the Speedo sometimes works but the mph reading is way off. Say I'm doing roughly 30mph it will think I'm doing 50 to 55 mph. Or it won't work at all and the needle goes all the way to the right hand side. The car is an import and some mph clocks have been installed but I think by someone that didn't know how to do it correctly. Advice anyone please.
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Posted: Tue Jul 03, 2018 11:42 am
by sol-lude
either the conversion chip is gubbed happened to me before or VSS
Posted: Tue Jul 03, 2018 2:05 pm
by arif_manji
sol-lude wrote:either the conversion chip is gubbed happened to me before or VSS
I had the same issue and it was the converter. I removed it, re-soldered the wires back and installed a UKDM speedometer.
Re: Automatic Speedo wrong
Posted: Tue Jul 03, 2018 6:46 pm
by c_doughty1
I don't know what either of these are or what they look like?
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Posted: Tue Jul 03, 2018 11:07 pm
by Vtecmec
After market convertor boxes are usually fitted behind the clocks or at the VSS in the engine bay. It'll be a little black box with about 5 coloured wires coming from it.
Posted: Wed Jul 04, 2018 10:39 am
by sol-lude
If it has EL dials it may not be behind the speedo, found the one on my BB4 the other day lurking behind the ashtray.
Re: Automatic Speedo wrong
Posted: Thu Jul 12, 2018 3:22 pm
by c_doughty1
Does anyone have any pictures of this Conversion Chip?
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Posted: Thu Jul 12, 2018 3:38 pm
by newkid
If its proper mph clocks there won't be a converter.