Originally posted ugh. :rolleyes YES, there IS a reason why. The MAF reads incoming air. The ecu provides fuel for that amount of air. When you vent some of that air, you have extra fuel.

ok, some reason that made something in my brain click and made a lot of sense, BUT if the dump tube comes into the intake tube AFTER the MAF(MAF and MAS are the same thing right, Mass Air Flow or Mass Airflow Sensor, or something like that right?) how does it read it? and why can't it just take in more air from the intake tubing? this thing is gay :( . and what about changing the MAF to be able to vent...you can do this right? imma search tomorrow.

i have a GST btw Star.

*edit - how do you post at the bottom of the thread when you reply with quote from a post that are a couple of post up? :)