Timing Troubles

[Dr.Evil]

I am still trying to figure out why my truck idles bad when hot. I decited to check the timing again to make sure it didn't move. With the truck cold and brown wire connected, it is showing 5* BTDC. As soon as I disconnect the brown wire, the truck dies. It will restart briefly, then die again. As soon as I plug that wire back in, its will start and idle alright. Is my timing so far off that with the wire disconnected the truck dies? Or what is the deal? Does it need to be hot to set it?

Truck has the stock chip in it, new ignition system (everything execpt the dist).

What exactly is that wire for?

Timing should be set at 0* (furthest arrow on the left of the timing indicator) with the wire unplugged, correct?

 

[Dr.Evil]

Re: Timing Troubles

Nevermind, I got it to run with it disconnected. It was aprox. 8-10* advanced. I set it to dead on 0* and it seems lots smoother. Well at least it does when its cold. We will see how it runs warmed up.