Hi, I am looking for spme help with my raddo 93 VR6 148K. It will trun over but not start. When i switch on the ignition and staright away there is a random realy clicking in the fuse box and clicking form the engine bay, the rev counter needle flicks up and down. it can stay like this but can eventually stop. the engine turns over fine but it wont start, it will however pop a bit and it blew the palstic black box off / up which is on the back ISV. Its fueling and has a spark. When the ignition is switched on you can hear the fuel pump prime, occasionally it alternates between priming and sto