can anyone tell me how to check the no3 injector apart from quickly pulling the lead on and off im either putting it down to
bad comp in no3?,
bad plug?,
or the injector having a bad earth like bigern said???

everytime i run the car take the plug out its soaked?? clean it put it back in give it a rev or idle no matter, its the same???

Oh and if the injector is not constant would this not show up on a noid test
if this is the case it must be down to plug or valves?? my head is burst with reading through old threads