Thread: only 80-89% at WOT

Originally Posted by Uno99

So is this thing just tricking his PCM by sending different frequency to his MAP and MAF? Via some sort of resistor inside the module he spliced in?

This is exactly what it does. They work fine on the 3800 Series I, just not on anything with ODBII. Although the JET modules I remember just snapped in between your PCM connectors to modify the signals, no splicing.