Spedometer bouncing all over. Please help!!

[Accordtyper91]

Just swapped Prelude H23 trans onto F22a1 and spedometer bounces around and sometimes just doesn't work at all. Let me know what you think. Thanks.

[vietkid_2006]

Speed sensor on the transmission is bad.

[Losiracer2]

try slathering some dielectric grease in between the two connectors first. I did that and my VSS works perfectly again. Just buy a tiny packet at autozone for 1.19 and put the grease directly onto the contact points of both connectors.