well...do you have a boost controller....is it turned up too high....i know if i open up my boost controller i can peg way past 20 psi becuz the wastegate wont open....but i also know its pointless to go that high so mine is turned down...you need to find out why ur wastegate isnt opening up...

 

perhaps your wga is broken? you said it works fine w/ the stock one, right?

 

only way itworks with the stock wga isif i route the lines the way they came from factory.. if i t the green or blue line to the stock wga it does the samething

 

try not "t-ing" it up

 

what do u mean by not t'ing it up??