well lads, i bought an avcr off adverts long story short, the lad i boght it off only sent me half of the stuff he had advertised with it, and wont answer calls texts or nothing....so cut my losses and boght new boost pressure sensor off rhdjapan, went at the wiring end of it their last night. got a wiring diagram off google for spec1 rb25, the diagram is N4-a. wired up as i seen it on the diagram and now car wont start. avcr is lighting up on the buttons but screen wont come on. the car (skyline r33 spec 1) will turn over no problem but wont fire up. has anybody a solution to the problem, help would greatly be apreciated, thanks.