my lift pump lite is coming on when i'm putting my pickup under load. but it only comes on when i have the tst turned on with the ez. but when i shut it off the and put it under load the light will not come on. Is this meaning that my lift pump just can't keep up and my injection pump is starving of fuel, or does it mean the lift pump is going out? I am going to leave the tst off untill i can get my fass system bought and put on.

 

i don't think it means the lp is going out. it just means it can't keep up with the tst performace.

 

It means that the lift pump can't keep up with the fuel hungry VP44 when you turn the power up. Keep it stock and keep your foot out of it until you get the FASS installed, then you can go nuts.