View Full Version : changing from an n42 to a p90

06-07-2004, 09:06 PM
replacement engine arriving shortly from auto active, geoff has advised me that i need to use the ECU from the old unit on the new one.

1. Why does this have to be done?

2. Is it just a matter of replacing one with the other?

new header, k&n filter and plugs leads on their way too:D

poor wee credit card:(