Originally Posted by massey
the rev counter does keep playing up aswell, its deffo on the d+ mate i will check the earthing out the blue wire in the morning, were is the diode pack? it is a brand new alternator thanks for the info
The diode pack is built into the alternator itself. Just because it is a new alternator, doesn't mean it can't be faulty. Test the blue wire as you say, and let me know the outcome and I will assists where possible.