recently have purchased a 01 itr gauge cluster to go into 01 gsr...in and out with no problem except for one....the mph speedo....now everything else is fine....temp gauge...gas gauge...rpm gauge and all lights except speedo....as soon as you turn on the car the needle will jump t0 20 mph ( stand still ) and I have not road test to see if it doesnt work at all....need help and opinions.......notice on my gsr cluster on the back near the bottom there is a blue ( denso ) chip??!!! but on the itr there is a same space for it but looks you dont need it there...could that be possible i need that or that has nothing to do with it???

 

VSS maybe?