P0505 wont take idle relearn
 

00 Maxima...I blew hole in my intake manifold from nitrous, replaced it and later the IACV...The idle will not go below 950, I got a idle relearn to stick other day but messed up bout 10mins after driving the 950rpm came back, every time i put clutch in coming to light it goes to 1700 down to 1200 then 950 after i completely stop and im getting 10mpg.


I ohm both the IACV their right in spec, i have the idle screw all the way out on TB and cables loose and thats lowest she will idle. been 2months..just wanted some input..should i pull out ecu check see if its burnt?