Originally Posted by mach4

That looks identical to the one I picked at the junk yard...should work fine.

What black box? Pictures?

You could, but the integration would be far more complex. For example the stock shutdown is a mechanical valve on the back of the ignition switch. You'd have to find a way to remove the ignition module from the steering column and install it in the target vehicle....not something I'd attempt. One way or another you need a vacuum valve to accomplish the shutdown.....OK, I lied - you can just run a length of vacuum hose into the cabin and when you want to shutdown the engine just suck on the hose! (I know it works because my original vacuum solenoid failed when I was 2500 miles from home on one of my cross country road trips and a temporary length of hose got me home)

Originally Posted by OM617YOTA

Yeah that's it, provided you get all that stuff in the right order.

I ran one big wire to the engine, then split that wire off to go to each GP. When one GP fails, I have to disconnect the wire to each GP and test the resistance of each GP to find the one that quit. The MBZ factory system has individual wires running off the engine from each GP, which then separately go into a connector and then on to the GP relay. When you have a GP failure with the MBZ system, you can yank that connector and check resistance on each of those pins to figure out which GP quit, and then you only have to disconnect the wire from that particular GP. WAY easier, especially as GP's never fail when convenient.

I also used spade/fork terminals instead of ring terminals on my GP's. I only have to loosen the nut and pull the spade out, instead of removing the nut entirely and risking losing it. Doing GP's in the snow ONCE convinced me of this, as of course GP's don't go out when you're in a comfy heated shop with a nice concrete floor and time to kill and just happen to feel like doing a bit of wrenching, just for the sheer pleasure of it.