Ok, picked up a raptor from Tom in his garage sale and have been working on installing it. I ran a fuse tap out of the passenger side fuse bog for my hot wire to a switch in my console. Tapped the coil, saudered all my connections. The switch i'm using requires a ground so I did that and went to finish the ground wire for the raptor but that caused my switch (it has a light) to go dead, i'm on electrician but I'm guessing I only need one ground. I know I'm getting power and to the Raptor itself, but I've got a problem either with my connection to the coil itself or grounding the Raptor.

Any help would be appreciated it, I searched through quite a few threads but no one's done anything like this that I've seen.

 

what i usually see at my dealership(lexus) with some people who bring there cars in with some aftermarket stuff is a very bad ground connection.

i guess that would be a good starting point, other than that dude i dont know sorry.

 

I know I'm getting a solid ground, took the tester to it (I clamped it on the bolt for the e-brake) I need to check the power output from my fuse tap, kinda hitting my head for that one. Any more suggestions are welcome

 

what is the fuse rated at? maybe too much juice for the fuse?

 

Hasn't blown it, it requires a 12 amp power source and I swapped in a 20 amp fuse to make sure that wasn't the issue. Plan on using a 15 when it's all together.