Discussion Starter · #1 ·
Alright Passat world i have a real problem, this post is being made after ive exhausted all other searches and sources. I own a 2001 B5 passat 1.8t 5 speed, it used to be a ton of fun, it was decently fasted, it pulled hard, sounded good, and then i went and messed it up. The only thing ive really done is added an intake that it has run for a long time now. About a week ago i decided to try an add a boost controller after my n75 valve thinking it would bring me just a little boost for cheap. After installing it, i plugged in my obd2 scanner/Live data reader and went for a drive, after pulling off of my dirt road i tried to do a pull, it felt like it really built a lot of boost and then my acceleration dropped, i could barely climb, i can hear my turbo spooling like normal but i had no power so i figured oh just a boost leak. After checking, there was no leak, i have since took the controller out, replaced any cut lines, and have reset the ecu several times, its been multiple days now and i dont have a boost leak, i dont have any engine codes, ive done away with the problem causer (boost controller), i used a bicycle hand pump to test my wastegate actuator and it held the right amount. the car climbs from 2000-2800 rpm like normal and pulls well in every gear but anything above and it just feels and sounds like the boost is all being wasted, i can barely hit 90 on the highway, my live data reader shows the TPS and it rarely goes over 20% even when im really standing on it, in previous data logging sesions before this issue i would hit 100% plenty of time but i cant get that now, not sure if my throttle body coincedentally went bad right when i installed the controller or if im still in limp mode, please help im out of ideas and beers.