did you replace it with the stock waste gate or a aftermarket? which one did you go with?

its aftermarket i dont know what brand i got it from my dad to tell yell the truth,put as soon as i swapped them my truck came back to life fixed the problem

id try the wastegate first then just for giggles id check and make sure ur fuel shut off was opening all the way when u started it. i had a truck that the shut off was wore out on it would start and act like yours is.