02-02-2012, 09:14 PM
Almost definitely the speedo sensor. It's down the back of the gearbox on top of the diff. Iirc it's a 3 wire plug going into it.
Team Eaton
1999 China Blue 306 GTi6 - Eaton Supercharged - 214.5bhp 181lbft
1999 China Blue 306 GTi6 - Eaton Supercharged - 214.5bhp 181lbft