High idle and mass air flow code after intake job. 3.4 V6

I did a lower intake gasket, thermostat, and tune up on the car, had a rough, high idle and pulled a mass air flow code, checked for a vac leak and found one, fixed it, and cleaned up the idle. Although it still idles around 1800 and has a mass air flow code, I also swapped the Maf with a good used one with no difference, also makes no difference if the Maf is plugged in or not, if the map is unplugged it shuts down immediately, I am lost and cannot find another cause for this, idle air control valve also seems to function fine as well as the tps and it also has a brand new battery and pcv valve