Engine wont idle

[brad5252]

Recently replaced fuel pumps and fuel tank on 1988 B2. It has 40 PSI fuel pressure and will fire when I turn the key. After I let go of the key the engine dies immediately. Any thoughts on where the problem is?

 

[Uncle Gump]

I've seen the ignition switch connector gives results like that.

The connector doesn't always stay connected well. I've seen zip ties used to hold it together.

 

[Bub]

I've done the zip tie on mine

 

[Gordy]

Or a bad ignition switch itself possibly?