(This was answered off-line, but I'll provide the answer here, in case any others are reading this.)
voltron22 wrote:I was attempting to perform the e-brake and vehicle speed sensor override on my 2007 G35x, and I had a few concerns. I can't shift the car into drive w/o starting it, as opposed to putting it into drive with just the accessory power on and e-brake engaged. So, when I do turn the engine on and put it into drive and then turn the engine off, an alarm sounds. Is there another way to perform this step without sounding the alarm? Or am I just a moron and doing this wrong - be honest.
You need to press the "Start" button twice without pressing the brake pedal, to put the car into "On" position without starting it. Then put the e-brake on, and you can safely shift it to "Drive". Now, press the "Start" button again, to turn the car "Off".
voltron22 wrote:And just for the sake of clarity, ground both the e-brake and VSS pins that feed the plug? Then insulate (wire nut or electrical tape) the exposed wires coming from the chassis?
You got it.
Cheers,David