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Speedo help!
Posted: Thu Oct 24, 2013 10:25 pm
by bb4life
Hi guys, the speedo in my 4th gen bb4 is 10mph slow, its got the jdm el dials, any ideas why its slow?! Ive changed the speedo converter box, hasnt made a diffrence!
Posted: Thu Oct 24, 2013 10:56 pm
by Vtecmec
Are you running standard wheels and tyres? If not they'll throw the readings out.
Posted: Thu Oct 24, 2013 11:00 pm
by Vtecmec
Wait, 10mph at all speeds?
Posted: Fri Oct 25, 2013 6:23 pm
by bb4life
Yea 10mph dead on all the way!
Posted: Fri Oct 25, 2013 9:40 pm
by Bludge
What happens when you do 5mph? does it read minus 5mph??

Posted: Fri Oct 25, 2013 10:29 pm
by vanzep
check the connections to the vss
Posted: Sat Oct 26, 2013 2:05 pm
by bb4life
The needle doesnt move unless your doing over 20mph
Posted: Sat Oct 26, 2013 2:24 pm
by Vtecmec
I suspect the clocks, might be worth getting some UK el dials and ditching the converter box at the same time?
Do you have Vtec in 1st gear?
Posted: Sat Oct 26, 2013 3:25 pm
by bb4life
Checked the connections, theyre all good, ive got vtec in first, dont really want to swap clocks ad i like the el dials, im not majorly bothered about it, was just trying to see if it was a simple fix
Posted: Sat Oct 26, 2013 5:07 pm
by Vtecmec
If you have Vtec in 1st then its probably not the VSS and must be the clocks. Worth just keeping your eye out for a UK set of el's, they plug straight into a JDM and will read in MPH without the converter box.