Buzzing still there after changing pump...help

The fuel pump has been changed, but the buzzing is still there, however it is not coming from the pump but the next part along, cannister type thing.

can anyone tell me what this is please

That sounds like the accumulator to me.

I'm not sure whether you can source a brand new one, but Crazyquiff should be able to sort you out with a replacement 2nd hand one.

HTH

Rich

what does the accumulator do?

jools182 said

what does the accumulator do?

Accumulates fuel.

It smooths out the pressure pulses from the pump and helps retain the fuel pressure, to prevent fuel vapourisation for a hot-start situation.