HELP! Fires up but doesnt stay running :(

Did you just install the Painless harness? If so and you followed the instructions more than likely they are wrong! I hate to say that but I do have a diagram that will fix this problem and get you going. The way it is wired right now the only time there will be power is when the key is in the crank position. You have an older manual from before I was here and it has since been fixed. What kit are you using?