Would you happen to have a diagram of how to wire your hot wire to an MSD boost a pump. I already know how to wire the actual MSD to your hot wire but was more intrested in how to wire your hotwire to the under side of my f-body. I'm talking about the factory wiring that is located near the axle that goes up into the sending unit. I already had an MSD boost a pump installed and when I went to install the hot wire I did not have any power going to the back of the car. I followed these instructions http://forums.corvetteforum.com/show...hlight=msd+bap you covered on corvetteforums.com but I still had problems. Could you help me out with a detailed diagram which shows how to hook up the other wires. I also checked all my fuses and actually grinded off some of the paint off the underside of car to get a good ground. This is my second hot wire I've install in my cars so it's not like it's something new to me. I also swapped hotwire relays with my gn relay but I still was not getting any power. The only wire w/power was the alternator wire that went to the rear of the car. Thanks Andy

 

Where's racetronixs when you need them????

 

If you have a Racetronix setup, wires are the same color as stock.

I'll try to help you out, but I do not have a picture or diagram.

Tank connector
2 purples for tank level,
Red for the pump power
Black is ground

Body connector
2 purples for tank level,
Black is ground
Grey is for the pump trigger wire. This energizes the relay

Large black is the auxiliary pump ground.

Your BAP should boost the voltage in the large red 10ga. feed wire.

Does the relay click when you turn the key on?
You likely have a poor connection on one of the factory ends. Try to clean these with a small brush.