Hi, had a new battery recently and alternator tested but all came back fine. Problem I was having was driving along, If I knock it into neutral the red battery light keeps flashing on and off. Its never stalled but only recently started doing it. any ideas?

 

The engine speed is dropping too low, so either a dodgy iscv needs cleaning or the wheel speed sensor is not working as this should automatically raise the revs to around 1200/1500 under these conditions.
tabetha