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hi guys having an issue with my number 4 injector, running on the mirco ecu. pin 42 isn't sending signal to the injector to spray. Is there something on the board of the ecu i should be looking at? i've swapped plugs around and injectors and all 4 injectors work fine. This injector was working before,

hi

did this get sorted in the end? as i'm having simular issues now tried above that martin has done. but my AEM gauge doens't show AFR. counter goes up to max then shows ----.

or how did you sort yourself in the end martin?

thanks