Found a cheap abs/airbag light jobby on ebay to replace the one with the ripped out abs bulb (thanks to the previous owner for that

) my bad for not noticing it. Anyways the bulb is going out and coming on all the time so i am hoping it is just a sensor, gunna get a vagcom cable off ebay for next weekend. Is it likely to be a dodgy sensor as the bulb comes on and off going over bumps sometimes? I hope it is as its a cheap fix then. Cheers