hey ppl my power light is flashing on the dash for my gear box sports mode but only occasionaly, also when i select drive on my gearbox when cold it is very rough i.e jurks into gear but when warm goes away!

Ressurecting a very old post but I have this exact problem-power button flashing and very little power(no kickdown etc)

Onlt happens from time to time.

Any ideas anybody?

Thanks,
Chris