hey guys i jus installed the air dog 150 on my truck and sometimes it wants to crank over way to long before it starts ... the pump runs for about 3 secs wen u turn the key over and then if u crank and it dont start it runs for about 2 mins and cuts off and then still had starting issues - im out of ides can yall help? thanks guys

 

Sounds like a air leak to me. My FASS only runs for about 1 second, if that. What is your fuel pressure like?

 

Did you replace the draw tube in the fuel tank?

 

Try this.

 

Try this one. (sorry had posted the wrong schematic earlier)