Speed Passion Problems.....

[Callum]

Hi chaps,
I have yet another problem with my Speed Passion Reventon Pro im running it with a GM motor.
I was racing at a regional and it was running faultless all day until I switched it on for the final the problem is that when its first switched on it pulls away fine but as soon as you use the brakes to come to a complete standstill and pull away again it wont I just get loads of flashing lights on the speedo.
I have tried it with no cut off protection and heat protection disabled but still get the issue, the motor cogs really bad and the same problem occurs in sensored and senorless modes.
Also after landing of a jump it just cut out.
I have also tried fitting a new capacitor.
The problem was intermittent to start with it and would only do it occasionally but it does it everytime now without fail.
Also all the solder joints are good.
Any ideas?
Cheers Callum