Speedo and Hypertech?(not the bathing suit)

[timgco]

I've never had issues wth a Hypertech yet.... but have had two speedos replacecd. The issue I had the first time was the mph would stay down at ZERO or jump up to the top end and stay there. Than it eventually (not more than a week later) just died out alltogether. I bet your speedo is going bad. That whole guage cluster was replaced on my 03. They had to pull the whole cluster and send it in somewhere.