I have an 02 WRX and just as the thread title says, I am experiencing some issues with my boost after preforming a spark plug swap. I run a stock turbo, with a catless TBE and catless upipe, a STi TMIC, and a protuned cobb AP map. Yesterday afternoon I replaced my sparkplugs. After the swap I took a test drive..the boost just keeps going up, WAY up, I easily bury the needle on my gauge, which stops at 20psi. By 2500 RPMs the needle is burried at the top of the guage. It is like the wastegate is not opening at all, the turbo just keeps spooling. Can anyone give me an idea how to start troubleshooting this? I am wondering if somehow the battery reset has messed up the wastegate maps in the basemap. I have tried reloading the basemap several times but I get an error message. I am waiting to hear back from my tuner, but I am trying to see if anyone has any ideas.
I just got off the phone with my tuner, he suggested that I might have knocked one of the wastegate vacuum lines loose. Which is very possible, because I had to go on a lost bolt search halfway through my spark plug job that involved removing the intercooler and also a lot diging and prying around on the passenger side of the engine bay. I might have pulled a vacuum line off and not realized it...it was dark.
Yeah, this one time this fool was screwing around with different pills and hose unions and left a hose disconnected and hit 25+ psi on a Vf34... oh wait, that was me.