So I picked up an 89 to possibly use as a parts car. However, I'd like to try and get it running to see what shape the mechanical parts are in before I start removing stuff, or decide what I want to do depending on how it runs. The previous owner pretty much destroyed the ignition switch with a drill, does anyone know which wires to connect from the switch to simulate the key being on?

Brown (main power?) Plus white powers all of the interior electrics like the radio, I can bypass the fuel pump relay to get fuel, does anyone know how to manually give power to the rest of the car like the ignition system? Or have a diagram of the wire colors coming from the ignition switch? I've heard that it's brown+white for main power, Black+purple, and 12v+ to yellow/white for cranking (although I can bypass that one by bypassing the starter relay.

It's an 89 US-Market V12 with Marelli Ignition and ABS if it helps

 

This should help.

 

Thanks a bunch, I'll give it a shot next time I'm at the car. When I got the car home, I remembered it was Brown to one of the white wires, but in hindsight I may have been jumping White/Pink(Pos1).... Because I remember the radio coming on, but cranking it produced no spark nor any voltage at the TPS (unless Marelli needs to be cranking to send power to the TPS as someone had mentioned, I'm not familiar with the later Marelli cars).

 

Thanks again, was able to get it bypassed. Much to my surprise, the car started right up, runs and idles beautifully, and the transmission even works fine. Not bad for not having driven since 06.

 

Hmm... Are you still gunna take her apart?

 

Not sure yet, I didn't expect it to start and run and move under it's own power so easily. Going to patch the tires and drive it around the field tomorrow to see how it acts.

 

Lol.... You're awesome! Enjoy!

 

Outside of there being no power steering pump belt and running out of gas, the rest drive was successful. Runs great minus a stuck AAV, brakes work great, transmission works great.

 

The power steering belt drives the water pump. Hope you didn't drive it very far without that working.

 

Yeah, just around the field, not enough to damage anything