Hi Guys,
ive got a 02 400FSE which looks to be upgraded to a 450FSE .
Anyway when i removed my battery i found a wire that looks to be Blue and Green striped i followed this wire back to the ECU i runs from the main harness that plugs into the ECU ive tried to find a wiring diagram to explain what im looking at as u can see its been connected previously but dont think its an earth as there is already an earth wire running from the ECU plug
ive added a few photos.
ECU.jpg
unknown wire.jpg
Any help would be greatly appreciated
Cheers Guys,