Originally Posted by 3i2011
Disclaimer: I have no f***ing clue what I'm about to talk about so take it with a grain of salt
Intake isnt bigger, it can just allow more air to flow through? I guess porting the throttle body throws off the maf because its a bigger diameter opening so the same amount of air comes through slower compared to stock? Maybe? So the maf reads its getting less air than it actually is? Sort of like a 1 gallon per minute pipe with a diameter of 1 foot. Open it to 2 feet, to get the same 1 gallon per minute, the water is going to move slower. Someone who knows whats going on, am I on the right track?
Thats pretty much the idea. Any intake that hasnt been tested or calibrated will give you the cel due to the same reason.
Bigger intake will work, but lots of tweaking is involved.