Speedo Problem

[mattyprts]

Hi guys,

I have a mate that has brought a r33 gtst rb25det auto

the problem is the speedo reads for example roughly 180kms on the speedo but road speed is approx only doing 80-90kms

it seems to be like 100% out on the speedo to road speed, at any speed

i have tried fitting 3 different speedo sensors and have tried another cluster, and tried another ecu,

has anyone else seen this problem or heard of anything or could point me in a direction???

if anyone has any help could they message back asap please

thanks

[KiwiRS4T]

I have no idea what might have caused the problem but if the error is linear (i.e. 50% out at all speeds) then there is a Jaycar speedo corrector unit that will make it read right. Is the dial the original 180k dial?

[Priceyy]

Speedo has been wound back that puts them out