Bettiboop

Howdy I have got an R33 RB25det ( GTST) i have had some bad luck and have parked the car away for 12 months and unfortunately, on the first-night rats have got to the interior electrical so to be intact apart from head unit wiring which isn't big issue due to i just want it to start etc I go to start it and I believe the starter motor is clicking the solenoid but isn't turning the engine on at all and then the dash lights turn off / every electrical including head unit etc then when i take the key out and retry the same thing happens Unsure where to look at any suggestions any common faults I should be looking into? Thank you in advnace

Ok so the adapter needed would it be obviously from the Bosch plug to female denso plug for the loom to connect in to?

Just modding out my r34 skyline gts-t Quickly wanting to know pretty please before I go ahead and switch out injectors have got a set of 1000cc Bosch injectors here top feed style I'm quickly wanting to know will the injectors I got here fit the plug on them are a standard ev6 plug If not do I need a ev6 to denso connector? Thank you in advance