Fits: 88-91 Prelude (K-series swap with CSS transmission)
This adapter will allow you to use a 02-04 K-series harness with a CSS speed sensor transmission. In addition to the VSS to CSS adapter this also includes the ECU B11 to C101 jumper wire you will need.
IMPORTANT: In order for our adapter to work you must use a KPro V4 and your ECU must have the "CSS mod" or "B11 VSS output mod".
Please read the blog post and installation instructions linked below for more details.
What the heck is this VSS, CSS stuff? See this blog post to determine if you even need this:
K-Series Swap Getting Working Speedometer with CSS Transmissions
Installation Instructions: https://prelude3g.com/share/Prelude_Engineering_LLC_K-Swap_VSS_to_CSS_Adapter.pdf
