Engine/Transmission (1998.5 - 2002) Why is my wastgate opening at so low psi now?

[JaMan]

The other day while trying to find an erratic boost issue I found a small hole in the rubber hose from the boost elbo to wastegate, so I fixed it and now the wastgate apparently opens at 33psi and falls to 30-31 at wot in 6th gear not near the 37psi wastgated I used to see, is this all the boost elbow from Edge is good for, I have plenty of fuel and if I cap the wastgate I get over 40psi, could my diaphram in my wastegate be screwing up?If this is all I can expect then is a adjustable boost elbow my only option, to get back to the 38psi range?





Thanks Jared



P. S. new fuel filter and 7psi fuel pressue at wot

 

[SEmerson]

If you goal is over 40 just unhook the gate.

 

[JaMan]

Just pressure tested the intercooler and piping system for leaks it's good then I capped the wastegate and test drove it and the boost falling problem went away . Boost went to 43 at wot and held there so why is my wastegate so sensitive now. I would like to keep the wastegate and regulate it to 37 psi. Is there a problem with the diaphram in the wastegate os does all sound well. The boost elbow allows it to boost to 33psi and fall to a wastegated 31psi and hold doesn't this sound low?





Thanks Jared

 

[csutton7]

maybe it wasn't working properly--if the hose had a hole in it and it was bleeding away air that would activate the wastegate the wastegate might not have been opening all the way possibly---chris

 

[JaMan]

Thanks, I guess I'll just have to try an adjustable elbow.